> Under what circums do you want this?

Click on "Sign In/Up with Google". Opens in app browser. Not logged in even though I'm with Safari. Type email. Type password. Get password wrong. Type password again. Get text/email with 2FA code. Every single time.

Or Gmail app. Click link. Open in-app browser. Not logged in.

I am not a fan of the "Password Fabric" - if you are, you are not my friend...

Not paying a subscription for a password manager. And don't want a single point of failure for all my accounts.

Self-host vaultwarden, it's free, and it syncs to all your devices so you have a bunch of backups.

All the time. For example: open a link in Gmail, forget that I am in the in-app browser, and log into a service.

I’ve had to log into google/fb/etc so many times through in-app browsers when I’m already logged in in my main safari browser.