@voliaby If you like the feature, you can update Opera to 74.0.3911.203 if you haven't already, turn it back on and see if Opera still crashes. If not, then you can use the feature. If it still crashes, please test in Opera Beta and Opera Developer from https://www.opera.com/download. They might have a fix that just hasn't reached stable yet. You can uninstall them when done testing if you want.
I don't have the crashing problem myself, so I can't test. I think it might be due to what files and such you last copied in Windows. If they're huge or of a certain type, that might expose the bug in the feature.