There are a number of issue still open on the issue queue that need coding, and Drupal 11.1 is soon to release with OOP Hooks which will require a significant amount of code changes.
The TicketFactory needs also to move to a more generic handling of tickets which does not require an unique build function for each one which should greatly reduce the amount of code around making or loading a ticket.
Active
3.0
Miscellaneous
Add 💬 Compatibility with TFA module Active .
TFA module replaces the core login process entirely, just like CAS Server does which means they are currently not compatible at all. Supporting 2FA would be nice, but would most likely need either a sub-module, or for TFA change how it operates to provide an API for tying it into any login form.