> - the pandemic tracking app without which you can’t enter an airport

Not sure if airports specifically used another mechanism, but the Android contact tracing APIs were actually reimplemented in microG, allowing these apps to work even on custom roms.

Your other examples don't hold universally either (banking apps are compatible with un-rooted custom ROMs more often than not, and not sure how many sports event apps use integrity checks), but your general point stands that it may come with trade-offs.