I would love Enpass to just show me the Windows Hello screen whenever it wants to be unlocked. So when I open the app, the assistant, use the extension button in the browser or hit the autofill key shortcut, I should immediately be asked for my Windows Hello authentication, without pressing any buttons. I think for most people that have Windows Hello login enabled, this would be the preferred way to go, but if you think people will be annoyed by it, making it a separate option is fine too.
And it would indeed be awesome if Windows Hello would stay enabled after a reboot!