And what attestation services does your web app use? Do we lock that web app behind having Secure boot enabled, along with a Java applet for the fun of it?
If your answer is "none", you missed the point.
If your answer is "none", you missed the point.
Configure your phone however you want, then use your physical ID because your phone isn't supported. They're not taking it away. In the same way that you can file your taxes. Having an online filing service doesn't mean you're being "excluded" because your i386 running BeOS isn't part of the supported hardware. Send a letter. It'll still work.