That’s the trouble with small screens, they’re narrow minded and don’t allow the broad world view which might have allowed me to notice someone had asked a v similar - in fact, direct opposite - Q before I posted my own…
Oops; Soz
Anyway, if it’s useful info, I installed the Amazon App Store when I needed an ‘official’ version of Tailscale and couldn’t work out how to disable the F-Droid ‘inofficial’ (Tailscale do link to F-Droid, but don’t build for it) version in App Lounge