M4 MacBook Air severe battery drain with macOS Tahoe

>>>> Launchd: /Library/LaunchDaemons/com.macpaw.CleanMyMac5.Agent.plist <<<<

There are two schools of thought when dealing with CleanMyMac aka “ BrickMyMac “

The steps in #1 below is predicated on the Offending  Application has been Removed as per the Developers Specific Instruction 

# 1 Some Contributors suggest restarting in Recovery Mode and choosing to Reinstall the Operating System over the existing installation. 

This may or may not replace elements of the  Home Folder ( User Account )  and replace any corrupted or removed elements and make things right.

Even after all the elements of CleanMyMac have been removed

The computer will never work the same there after.

#2 - Then there are Other Contributors ( like myself ) would suggest  from this link Use Disk Utility to erase a Mac with Apple silicon.

Thereafter to start from scratch and install all Required Applications directly from the Apple Apps Store or Directly from the Developer.

Do Not using Startup Assist to migrate everythings back as this will probably Re-Introduce the existing  issue

( CMM ) back into the computer

"Browser Helper (Renderer)" is a process from Chromium-based browsers including Arc. It's one reason that Google Chrome is a known resource hog on Macs. That process will run in the background even if the browser is not open. If you can live without Arc, try completely uninstalling it. Not sure how pervasive it is, Google Chrome leaves lots of baggage.

https://chromeisbad.com

EtreCheckPro is an excellent tool for identifying hardware, software and process issues.

Download and run the free version of EtreCheckPro, from > https://etrecheck.com/en/index.html

Then post back here with your Report, as per > How to use the Add Text Feature When Post… - Apple Community

As neuroanatomist pointed out, some of those Chrome-related processes will run in the background even when Chrome is not running. They scour around to survey your activity on the Mac and report back to Google, who uses the info to market things and make money off advertisements. It's insidious and hard to actually measure or discern. But that background activity can use lots of energy, especially if it isn't running properly and repeatedly tries things that aren't completing. It looks "inconsistent" to you because it is intermittent activity, running now and then presumably.

As an example of how this marketing works, I looked up a product online using Google to see what different brands cost. This took maybe a few minutes and that was that. So I thought. I am not much of a Facebook user but I did open Facebook a day or two later and lo and behold, SCORES of ads for products of the type I looked up. So these big companies, Google, Meta (Facebook) etc. are watching online activity, buying and selling information about us, and report it out, through our internet connections using our computers (probably browser caches are read, cookies are utilized, whatever). Google is notorious for this, after all, they don't really sell products, instead they make money off advertising so they go to a lot of trouble with data mining to make it attractive to companies to advertise.

If you are using Canva and Framer I am surmising there is related web crawling and such going on, at some times but not at others, which could (MAYBE) translate into increase cpu activity and battery drain. In addition, if there are network security or anti-virus security tools running in the background, those could interrupt those other background processes and cause them to try again, over and over.

How to proceed to address this is not clear to me, however. What you did sounds like the right approach -- trying to identify processes that are using a lot of energy (energy = battery drain, as opposed to memory or cpu use, which might or might not affect the battery level).

It wouldn't hurt to completely uninstall Chrome, although even with an uninstaller, additional steps might be needed to get rid of all its background processes. This would be an initial troubleshooting step, as you can always reinstall it later. Also, the Etrecheck report may reveal a lot of relevant information for next steps.

Part 1 of 2

Use the Activity Monitor application and select View >> View All Processes. Identify the processes using the most CPU and memory. 

Often, it’s a combination of processes. 

And Yes, this could also have a direct effect on the Battery

When the computer uses a lot of CPU and Memory, it may indicate a lack of empty space on the drive. 

In this case, the CPU and memory usage increase as the system searches for empty space to save changes. 

Also, consider the number of Web Browser tabs in use.

Each tab may consume significant CPU and memory resources.

View memory usage in Activity Monitor on Mac - Apple Support

Part 2 of 2

WindowServer ?

Quote from @ Grant Bennet-Alder

" WindowServer is the task that makes sure the right stuff is in every window, manages multiple windows in multiple positions on the screen, possibly overlapping or not, and generally manages all issues related to drawing the stuff on the screen. " End Quote 

Which could tie into the usages of " Canva and Framer " and several Web Browser Tabs open at the same time