I think that's outdated information in many regards. Most apps seem to have turned off the SafetyNet requirement; I suspect that may be due to a larger amount of Chinese Android phones that don't have it.

I'm using a Play-Store-less microG LineageOS on a Google Pixel 1, and all my banking apps work (Revolut UK, German Post Bank authenticator), as well as a Swiss online health care app.

I haven't found an application yet that I couldn't use on LineageOS due to lack of SafetyNet.