You fixed it! Apparently this program "ExtremeCopy" was the issue. I have used it in windows 7 since it was superior to the classic one. However, I can still use it, just with disabled context menu. Thanks so much!!!
Clean Boot (and Safe Mode by extent) didn't fix anything, and neither did fixing corrupt files (it found and repaired some, but no errors or files it couldn't repair).
I am too scared to do a repair install, so I'd rather try anything else that might help.
Also could it by chance be related to...
I made a MS account but I am not currently using it. Also OneDrive is not activated and I don't use it. Downloads folder is one such folder that crashes. My SSD root and Sata root, for example, don't, but there are a few random folders such as Steam that also don't, and even folders I made...
I just built a new computer and installed windows 11. Reluctantly coming freshly from windows 7, I have tried and done many things and tweaks to suit my needs more, so I am aware one of those things might be the issue, but I have no idea which, if any. My issue applies to any browser I have...