You do not have permission to open the application "X"
I'm getting this message when trying to open an app I on my new Mac mini (old Mini was running Catalina, but the new one shipped with Big Sur). In my case, it's a game called Velocidrone, but a quick Google indicates this is a problem for other Big Sur users and other apps as well, though I didn't see hits in the Apple Support community.
I've seen several suggested Terminal commands, but tinkering with Terminal commands is a bit out of my comfort zone. Any suggestions?
Mac mini, macOS 10.15