Not until I can backup a passkey without Apple or Google acting as the steward. I need a system where I know that if my phone is lost, I can restart my digital identity without a tech giant.

KeePassXC: Enabling Passkey Support https://keepassxc.org/docs/KeePassXC_UserGuide#_passkeys

KeePassXC Passkeys Without Big Tech! https://www.youtube.com/watch?v=L7uXFJfxf80

I believe bitwarden does this too, but I stick to yubikeys

1Password does passkeys, and they exist on multiple platforms. I assume they are not the only non-Apple/Google password app which can do this.

I have mine in Bitwarden but I didn't think carefully through this, I just used what I had. It looks like Vaultwarden hasn't yet added support so you can't rehost without Bitwarden but you don't need Apple or Google.

I'm not touching it unless I have a way to export my passkeys and migrate them wherever I want.

Yup! There's a directory of sites with support here: https://passkeys.directory/

I use it for ~50 sites. It's such a pleasure to use.