They might, but app for my bank works happily on LineageOS.
Same eg. with app for a local 2nd hand site, which on startup complains that it needs the Google services... and then runs without issue (only appears to use those Google services to pinpoint the phone's location).
Imho this is 1 more reason to put alternatives like LineageOS on a phone: the more users on those, the harder it is for app developers to drop that usergroup for... well, reasons.
Same eg. with app for a local 2nd hand site, which on startup complains that it needs the Google services... and then runs without issue (only appears to use those Google services to pinpoint the phone's location).
Imho this is 1 more reason to put alternatives like LineageOS on a phone: the more users on those, the harder it is for app developers to drop that usergroup for... well, reasons.