I'm trying to set up my Gmail account in K-9 Mail, and it opens the browser to log in to a google account. I use a yubikey for 2FA for my google account. The issue is, the following notification appears just as the page waits for the yubikey button to be pressed:
Google Play services error
Please complete action required by Vanadium
Clicking the notification gives a dialog box with the following:
This app won't work properly unless you allow Google Play services' request to access the following:
To continue, open Settings, then Permissions, and allow all listed items.
Clicking through opens the App info page for Google Play services, but it's not straightforward what to do next. There are no listed permissions for files or media. There is a menu item called "Storage and cache", but there's no configuration to change.
Is it possible to use a YubiKey for Google 2FA on GrapheneOS?