your article was published November 1, 2022. Today, April 24, 2023, I can say that I have tried every single technique suggested in yourarticle but the problem persists. That means you haven’t really found the culprit. You need to do more research; I am not the only person with this problem but Microsoft never, ever lets on about the real fix. Good luck.
4 Ways to Fix Folder Keeps Reverting to Read-Only in Windows 11
Folder keeps reverting to the read-only attribute in Windows 11? Here's the best methods to change the folders read-only properties on your computer.