In several apps, when I press Command+Shift+[another key] it brings up a rogue context menu.
In Craft, Command+Shift+B to highlight brings up one with just "Context Menu" in it.
When in Pixelmator Pro, Command+Shift+E (for export) brings up another one with random items filled in. You can see in the screenshots. The one with the alligator icon is some kind of German "mydealz" website...
I've confirmed it's BTT by quitting the app completely and the context menus don't show after doing that, the keyboard shortcuts function as intended.
ah, I just imported the Stream Deck example profile and have slowly been editing the examples included, so maybe that's it. I'll try deleting them and see if that fixes it.