That is unfortunate indeed. If you still have the ticket number, maybe let @dwbit know of it.
From your other thread:
Realized earlier today many more websites I can not create passkeys including Amazon, MyChart, and eBay using my Android mobile.
I just tested this a bit. I can successfully create a passkey for Amazon via my Android 15 device (Bitwarden vault of course – PS: and only via the Amazon app!). – eBay was not successful for me, and I just wrote a comment in this GitHub issue about that – I think it was wrongfully closed.
Creating passkeys Logging in with a passkey to a Google account on mobile seems to be an open issue, according to this comment from a BW developer.
I didn’t test “MyChart”.
Hm, as it works (at least) with Amazon, it doesn’t seem to be a general issue. Maybe have a look into this general guide also for the latest tips for setting it up: [Short Guide / Tips] Autofill on Android
PS: I now tried to create a passkey for this forum, and that fails also with the mobile app. But as I wanted to re-create my “old passkey” now, it also fails with the browser extension. (with the same error message) 
(extension 2025.9.0 – mobile app 2025.9.1)
PPS: Maybe some of those passkey issues on mobile might be resolved with one of the next releases (according to this comment from a BW developer).