Interpreting system-generated error messages

If you value your sanity, you will avoid the macOS system logs. The macOS logs haven't been useful for troubleshooting in over 10 years. Even the Console app won't show you all of the available logs...you must now locate them using the Finder which shows how much Apple thinks of them. These days even if there would potentially be a useful entry, it may be sanitized so there is no actual information associated with it. the logs are full of repeating entries, many with scary sounding & non-sensical entries meant only for the developers themselves. The only still partially useful macOS logs are the Kernel Panic logs, but even those are becoming less useful these days as well.

This article written by a respected forum contributor is probably the best advice available for preventing problems by practicing safe computing habits:

Effective defenses against malware and other threats - Apple Community

Safe Mode and a second admin account are the best ways to test things. Even a simple reboot is known to fix a lot of issues. Followed by asking for assistance on these forums... in which case it is best to post an EtreCheck report so it can be reviewed for clues. Since macOS is now on a read-only signed & sealed APFS volume, the core macOS should be intact....it will be the third party apps and custom configurations which will be causing the problems. Run the Apple Diagnostics to see if any hardware issues are detected (only a failing diagnostic is useful though).

Remember to disconnect all external devices as well when troubleshooting.

Keep in mind the regular forum contributors here assist so many users, they tend to have a good idea of the current things which are causing problems so they can usually point out where to look for many problems and whether a recent update has caused any problems. Just make sure to provide enough details when asking for assistance.

Uninstall Avira by following the developer's instructions. Anti-virus apps, cleaning/optimizer apps, and third party security software are not needed on a Mac and usually causes more problems than they solve, plus they impact system performance.

Only thing I've found is to google the process or an App like Task Explorer...

https://objective-see.org/products/taskexplorer.html

Oh Developer documentation...

Featured | Apple Developer Documentation

I would suggest installing EtreCheck and post the report. Allow Full Disk Access.

https://etrecheck.com/

Use the Additional Text icon to paste in the report.

It may reveal the issue.

Also, think about how an anti-virus product works (same goes for cleaning/optimizer apps & third party security software). These types of products have to integrate themselves into the lower levels of the OS in order to work properly. This is where an app can cause the most problems because these types of apps are designed to interfere with the normal operation of the OS....that is their sole purpose, because they need to be able to intercept communications between low level system functions to do their job. Anything that messes with this communication is going to cause problems no matter how well designed & behaved the app is. Many times it may be subtle and unnoticeable to the user, but other times it cannot be ignored with decreased performance and intermittent (or not so intermittent) crashes.

These remnants could also have been installed by almost any third party app you downloaded outside the App Store since some download sites (even popular respected legit & safe sites) may sometimes add unexpected extras to the download as advertising (both CNet & SourceForge have done this at some point as two examples). Not necessarily malicious software, but unexpected & unwanted additions.

We cannot guarantee this is the source of the problem, but reading & assisting people on these forums for years now, this is the first thing to address as it either solves or greatly helps many users' issues. Also keep in mind we can never be sure what these types apps may have modified on our system....they may have modified a system configuration which is not easily accessible to users. At least with later versions of macOS we at least know that the macOS core system files can no longer be damaged by these apps due to the recent security changes to prevent modification of the system binaries, although system configuration files are still able to be modified.

And removing them may not cure problems already caused...

Macbook crashes after sleep with Panic re… - Apple Community

Apple has for reasons made it impossible to garner much from the Logs anymore... possibly to thwart deciphering how to figure out how to run on Non Apple HW methinks.

About all you can do is find the processes, what they do, & try to interpret in your instance the cause.

Seems like you still have some something installed as this is found in Launch Daemons, not sure if it is from Avira or some other product:

[Loaded] com.jdi.ss.SSHelper.plist (SS Protect Limited - installed 2021-05-12)

Executable: /Library/PrivilegedHelperTools/com.jdi.ss.SSHelper

[Loaded] net.protected.macos.AVHelper.plist (SS Protect Limited - installed 2022-10-22)

Executable: /Library/PrivilegedHelperTools/net.protected.macos.AVHelper

The WebKit framework seems to be experiences lots of high CPU usage which seems to go along with what you have been describing. WebKit is the macOS framework for displaying web content in various apps.

Do you have the same issues with websites when using a third party browser such as Firefox, Vivaldi, Brave, or Chrome?

I don't see anything else which would cause a problem, but I'm not a macOS software expert so I will leave the rest of the software analysis to other more knowledgeable contributors.

No direct evidence, just thousands of problems seen & cured, it's not like a sure thing, & some AV act very nice on install, but seem to break down later, perhaps some added OS or other App Update or Upgrade. Info was given out as possible clues for you to look into since we're short solid evidence.

PS. I've installed & used perhaps every AV App there is for Macs & as a statement to their programming skills 90%+ of their Uninstallers don't remove all they installed, often leaving Daemons

or Agents running.