In your case, you can connect the Device to Gmail using 'Add Login' option in 'Settings 'and then always access it using Gmail.
Please use this forum for only feature requests...
About your issue, you are not able to connect to FB from your device account cos your FB already have another account linked to it. So, just login via FB... ERASE the current account linked to FB.
Trying to connect my game to Facebook, but it says it's already linked to another account—how can I remove that connection and link my current device account instead?
Kindly reach out to us at dev@dtmafia.mobi
To resolve this issue, ensure that your account meets the app's requirements for country, age, and other criteria. Check your profile settings, update your country or age information if needed, and try again. If the problem persists, contact the app's support team for further assistance.
To fix this issue, you need to disconnect the Facebook account currently linked to the game. First, go to the Facebook app or website, access Settings & Privacy > Settings > Apps and Websites, and remove the game from the list. Then, on your device, clear the game's data (if on Android: Settings > Apps > [Game Name] > Storage > Clear Data) or reinstall the game. Reopen it, and when prompted to connect to Facebook, log in with the Facebook account you want to use. This should let you link your current game progress to the correct Facebook account.
regards: Clash of Clans Mod APK
Sounds like the game linked itself to the wrong Facebook account when you first tried it. Usually, the only way to fix this is by disconnecting the game from Facebook in your Facebook settings (under Apps & Websites), then logging back in with the correct account.
Dealing with Facebook account settings can be so frustrating, right? It actually reminds me of why I switched up my messaging app too. I wanted more control over my privacy and how things look. That's how I found https://fmwhsapp.com/ – it lets me customize everything, hide my online status, and even tweak themes. It feels like having admin access to your own chats. If you're into personalizing your digital experience, it's worth a look!
Marco Agostinho