Yes there is an old thread which claims to have a fix for the issue, but I have followed the instructions and also I have no extensions enabled, and I have closed all open tabs. Still it reopens each time I quit. I have re-installed Opera to the latest v99.0.4788.77 and it does not fix it. I do not want to run 'Opera One', I dont like the new design.
MacOS 10.15.7.
Opera 99.0.4788.77
There must be a way to stop it from reopening. What allows an app to reopen itself? Is there an MacOS hack?