Enpass 6.11.13 is working fine under macOS 26 Tahoe beta 7 developer.
The only thing that is sort of an (old) issue is that multiple icons are showing up again in the dock, as they did a few versions ago.
One thing that has to be addressed for the future is to make the installer Silicon native. It still needs Rosetta, and Intel support should be gone with macOS 27, according to Apple. I know that is a year away, but in the past enpass has sometimes taken forever to fix things that should have be corrected in a matter of days.