I agree with you.
Edit: The steps below also fix the first issue. (Restart required?)
For your second issue it’s been discussed at https://lemmy.dbzer0.com/post/23856847 and https://connect.mozilla.org/t5/discussions/firefox-mobile-toolbar-redesign-needs-a-compact-mode/td-p/62031
You can use the secret menu to disable the navigation toolbar. https://firefox-source-docs.mozilla.org/mobile/android/fenix/Secret-settings-debug-menu-instructions.html
As for the first problem, if someone finds a fix I’d be happy to know. (Edit: Err, actually these steps fixed it?)
The Manor Lords situation confuses me since the game is still in early access. Games can be done, and that’s fine, but you have to complete a game first.