

Instead of being worried about compatibility, read about experiences and lists. It depends on the OS
Fairphone runs proprietary Android by default, with a locked bootloader. There should be zero issues why banks should block this, as they dont actually care about security




Of course not but it uses USB so you cannot block that which increases attack surface for no reason
Nobody can hack you via a headphone jack
And Apple heavily reduces the volume on non-Apple devices, which is very audible on bigger headphones. Mine are made to be used on normal hardware but they are already quite limited. Fine, but at the total max volume.
Yes and that is why DACs are stupid
causing wear on your port (where you need to remove the display to replace it, and that you use for charging AND data transfer) is stupid
It is not okay that they cost minimum 10€
Low quality usb plugs will cause wear on your port. I had cheap ones and they were fine but got a bad contact very quickly.
Builtin jacks are so amazing. They just work. They make tech pleasant, instead of worrying about silly connectivity issues that nobody should care about