fid02 Or perhaps try it on a different site in case this one is wonky?
I thought I will try with A-brand one first) Thanks!
Indeed, if I go to webauthn.me, then I both can register and then auth with no issues on Vanadium+Lib (no google required), though Firefox doesn't work there))))
Anyway, will double-check if to stick with Vanadium and throw away Firefox, as it's the only reason I needed it.
What's awesome, is that unlike GPServices, the lib https://codeberg.org/s1m/hw-fido2-provider supports NFC and it works just fine.
Also, GOS/A15 allows to choose my default password manager as primary one, and then the lib as additional provided, so I have both and I don't need to enable GPServ, set/remove it as default autofill - cool stuff
@GrapheneOS , @Lusca , @fid02 - many thanks!
@Jdjeowld - as advised, please try the lib https://codeberg.org/s1m/hw-fido2-provider - it may work for your case (depends on the particular case), no GPServices needed!