I'm trying to determine if the problem is a "failed" update, since Opera is giving my version as 70.0.3728.119 (the prior one) and cannot update ("An error occurred while checking for updates"). Something has gone horribly wrong. With the timing, I'm fairly sure it's an update problem. Nothing else in my system has changed.

I think my only option would be a completely clean install. Which I'm not best pleased about, obviously.

Today's update has borked my Opera browser. Will hang completely between 20 seconds and 1 minute after startup. Has to be closed via Task Manager.

I'm running a vanilla setup (no plugins or anything special) under Windows 10 Home 64-bit. Clearing the cache has not worked. Using "restore" has not worked. Other browsers are running without issue.

I can't explain the problem besides the latest update simply being bad. Watch out.