My business, no. Your government however, has a few reasons to want to ensure that the ID you're going to use to vote, to prove your identity to any service, etc, etc, does not get passed from device to device.

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.

I second the question, attestation of what? I have a Solo key that I use with webauthn for several services already. Is that not good enough and even if not, there surely are sufficient alternatives, least of all the actual electronic id on the national id card via nfc?