I disagree about worse service. I really love the ui on tesla and rivian. When I've had rental cars with carplay or aa it's been fine. The latter two mobile apps have also added more 3rd party streaming services. Tesla & rivian had added things too.
Every time Tesla updates their UI there's no end of complaints about random changes or how oft-used functionality is now moved to obscure menus behind small tap targets.
Define "value".