It’s an alpha release :)
Yes the development of OpenBoard has been at a standstill for some time, this fork has added various functionalities
OpenBoard 1.4.5 doesn’t support swiping, i am wrong?
I know there is a fork with swipe support
No from tor.taxi
For me it’s working
It’s not open source and they haven’t had a security audit in a while AFAIK, I used to use it too but migrated to Proton Pass for these reasons https://discussion.enpass.io/index.php?/topic/404-security-audit/page/6/