Finder hang-up problem still in 10.15.7

No Apple products that I know of, I would recommend starting with the Mac App store to see if there are any duplicate finding apps. If you find some that look promising, create a new thread and ask about them.

BTW, if you feel this thread has been answered, please mark it as such that may help another user in the future.

You can save you and us a lot of time and effort of playing 20 questions if you do the following:

Please navigate to the Mac App Store or navigate to www.Etrecheck.com and download the free version of EtreCheck. Once you have you downloaded the app and installed it, please run the report and save it. This report will help us get a good idea what has been installed on your system and help us be able to diagnose what may be wrong.

When you have your report, you can attach it when you reply to this message and we can then review it and help you determine what is needed to get your system running well again.

For instructions on how to download your EtreCheck report and attach it to your reply to this message please click https://discussions.apple.com/docs/DOC-250000211

There are some problems with your system. First, you have Sophos antivirus installed which at best is a 100% waste and could be the cause of your problem. The antivirus, security, cleaning and overall maintenance app for Mac OS is Mac OS itself. Simply keep Mac OS up-to-date and otherwise leave it alone and it will perform well for years. Adding third party antivirus apps to Mac OS have the exact opposite effect users want, they add zero level of additional security but succeed in making Mac OS slow, appear buggy and unstable!

Please locate the Sophos instructions to uninstall Sophos and uninstall it per those directions.

Next you downloaded some adware, please install Malwarebytes and use that to remove the adware.

After doing these actions (uninstall Sophos & use Malwarebytes to uninstall the adware) then post a fresh EtreCheck report.

A subscription is not needed but you may want to run it 1x a month. Just add that as a to do in your calendar or use Reminders to do it.

NEVER EVER install any third party cleaning app such as CMM!

As far as duplicate finders, you can use them but when considering one ask on these forums about it and perhaps an experienced user can advise based on their knowledge of that product. Personally I don't use any although I have tens of thousands of photos, music and movies. When I add media I am careful to check to see if I already may have it already in my library before I add it again.