Clatter850 when naviagting to Settings > Connected Devices > Connection Preferences > NFC when i activate the "use NFC" switch it automattically turns back off.
I'd try turning the device off fully. Like shut down and leave it for a few minutes. Then try turning it on again and try again to see if it works.
Toggling NFC works for me. If it continues to not work, it would be helpful to see logs. Logs from the Settings app might say why it isn't enabled, but might also have some sensitive information included in them. You can send them to me if you'd like. I have contact info in my bio here.
The logs are found in Settings > Apps > All apps > Settings > View logs. Make sure to try toggling NFC before getting logs.