As many of us who use OTP are also using 2FA on nextcloud itself, it would probably be a good idea to put in at least a confirmation dialog when pressing the "logout" button. If they only have their NC 2FA OTP token in the NC app, I could see it very easy for someone to accidentally press that (maybe hoping to lock the app on the phone, or at least not understanding what it does) and then accidentally locking themselves out of nextcloud completely. Or at the very least, change "logout" to something more specific and alarming like "Remove Nextcloud Synchronization"
As many of us who use OTP are also using 2FA on nextcloud itself, it would probably be a good idea to put in at least a confirmation dialog when pressing the "logout" button. If they only have their NC 2FA OTP token in the NC app, I could see it very easy for someone to accidentally press that (maybe hoping to lock the app on the phone, or at least not understanding what it does) and then accidentally locking themselves out of nextcloud completely. Or at the very least, change "logout" to something more specific and alarming like "Remove Nextcloud Synchronization"