Passkeys on Android

I recently purchased a pixel 8a and have been migrating my passkeys to bitwarden. For the most part it works well. I was able to create new keys for Amazon and Walmart. Other apps seem to have a mind of their own. No matter what combination of settings I try Home Depot and Lowe’s save the key to Google password manager. They don’t even list bitwarden as an option.

Is it safe to assume it has something to do with the way the apps are coded and all I can do is check if the functionality changes when an app update is released?

Thank you.

You might want to review this section of the documentation.

You should be able to get those 2 sites to work perfectly.

They do for me, in fact, those 2 are the poster children in my mind for how to implement Passkeys correctly. If other sites would replicate the way these guys do it, Passkey adoption would accelerate much faster.