@Featureal Thanks for the fix. This worked perfectly for me but in my situation SSO was working perfectly using the windows accounts extension in our hybrid joined environment until a week or so ago.
I followed these instructions and it prompted me to use my passkey which didn't work but it then allowed me to sign in with my domain username/password. Previously it was telling me to install the Windows Accounts plugin (despite it already being installed and previously working).
Thanks again for the fix @Featureal