Request for Community Posting Categories & Help with MetaMask Mobile Login

First, it would be great if we could post in categories like "General" or "Suggestions" on this community page.

I have many questions, but there isn’t a proper place to ask them.

Therefore, I apologize for posting in an unrelated category.

Also, I’m unable to log in to MetaMask on my mobile phone.

When I scan the QR code, it opens the MetaMask mobile app (Android),

and after accepting the permissions, it redirects me back to the page, but I’m still not logged in.

How can I log in to MetaMask on mobile?