Equinox

I think Cryptpad has a good forms builder. Try it here (official instance)

I do not use Google Pay or Netflix on my phone, and my german banking apps work perfectly fine. YMMV though

I also love my Oneplus 7 Pro, currently running crDroid (on Android 13, based on Lineage). It is updated semi-weekly and maintained by one person. It gets the latest security updates, but I am unable to relock the bootloader, if that is relevant to your threat model.

I’m probably going to do a battery swap soon and really want to use this phone until it breaks!