I've updated and then reinstalled Opera for MacOS.

This was working fine until about 1 hour ago.

It's odd to me that it's an overlay, maybe advertising related. It's hard for me to tell. The inspector isn't giving me a whole lot of helpful information.

https://i.ibb.co/3vhLVF8/image.png

The overlay is in the inspector as well. The angry red Stop is a first for a browser inspector. I'm figuring at this point Opera is compromised in some way.

https://i.ibb.co/WP9fv85/image.png