Thanks for the info, P. Phillips. Really appreciate it. The reason you see several outdated files is due to me migrating my 2008 intel Mac mini to the Mac Studio. I was under the impression that it'll only copy "system" files from one Mac to another that it actually needs. I agree that a clean installation would be best and I plan to but I'm knee-deep in a project which I need to complete before making such a move.
To begin with, yes, I will remove Adguard. The above files you mentioned, PACESupportLeopard.kext, PACESupportPanther.kext, SnowLeopard.kext, can I manually trash them?
Also, I did update Etrecheck to 6.7.2 and the report is twice as big. If you have a moment to look at it, is there anything else that you see which could also be a problem?
I've had the Mac Studio since August and the only time it automatically restarted was when using Pro Tools so I believe I should look at plugins, etc.
Thanks again, P. Phillips!