I use LineageOS on all my devices (it's actually my main criteria when buying a phone) to mainly install apps from F-Droid without relying on the Google Play Store.
It has the same familiar look and feel on all devices and by experience is way snappier than the original ROM.
Curve Pay is a viable option last I checked. I am unaware of any payment options on Amex UK app. Amex expects you to link your card with Google Wallet.
>What does not work? An LG app to control an air conditioner.
I use GrapheneOS. Thankfully I've had few things not work. Google Pay being one of them, the other is the garage door (Liftmaster)[1].
I genuinely find it disgusting. Thankfully I rent the apartment (and attached garage) so I've never given them any money. At the end of the day there's literally zero justification for a garage door opening app to brick itself if it's run on a unapproved platform. The official[2] statement states:
"Our customers rely on us to make access simple without sacrificing quality and reliability. Unauthorized app integrations, stemming from only 0.2% of myQ users, previously accounted for more than half of the traffic to and from the myQ system, and at times constituted a substantial DDOS event that consumed high quantities of resources."
AKA "we are incapable of implementing a basic ratelimit. faulty third-party clients made our AWS bill go up a bit so we are going to go on an irrational crusade against third-party integrations of any kind and expend more resources doing this than would be spent by giving users a simple API to use"
Banking apps that do not require Google Play services, such as Bank of America, run just fine. Besides, you can always open a browser and use the web version. Losing banking apps and "tap to pay" is a small price to pay for avoiding having your data constantly siphoned by Google.
It has the same familiar look and feel on all devices and by experience is way snappier than the original ROM.