TL;DR
- Efforts like Graphene OS face increasing pressure from apps that refuse to run on non-standard Android.
- The custom ROM project characterizes Google’s approach to device attestation as incomplete and flawed.
- Graphene OS is prepared to take legal action if Google won’t let it pass Play Integrity checks.
Yes, it has an upper limit though as I discovered after cycling to the garage to pick up my car with just my phone. Triple cycling joy that day 🙄
Yes this depends on the linked card, the software you are using and sometimes vendor limits. Many banks have a cardless withdrawal from atm option as a backup if there happens to be atm nearby. These can have pretty high limits. There are also card generating apps like cash app where you create a cc number on the fly. In a pinch most vendors can easily split the cost of something across different cards if one is maxing out.