How can I stop the menus from auto-closing?
In certain input configurations, Decker's menus (Decker, File, Edit, Card, etc.) open when clicked and then immediately close and this varies from a very frequent annoyance (on my laptop using the touchpad) to such a problem that the menus can't be interacted with at all (on my Steamdeck using a keyboard's touchpad). Turning on Touch Input, if you're able, fixes this at the cost of opening the on-screen keyboard which you may not want.
There is another solution: double-click. It's certainly a bit of jank to have to do this, but it consistently works.