How do I fix my finder issues in Mac Big Sur?

I recently updated from Catalina to Big Sur in my MacBook Air 2017. From then I had major issue with finder. I couldn't load a text, pdf, word or excel file. I found that it was due to problems with Finder.

I tried removing the finder.plist file and restarted. It worked fine but when I shutdown the system and power on next day, the above issue comes back.

rm ~/Library/Preferences/com.apple.finder.plist

Is there a permanent fix for this issue?

I don't know when there will be a security update for my MacBook model and my work can't wait for it.

Thanks in advance.

Solution

I tried the old mentioned methods in question for few days without shutting down the system. Later MacOS got updated and get rid of the problem.

Thank you for Your support