Hello there,
I have switched to using the Opera browser because I have grown tired of FF's performance, but needed a chromium based browser that would support most-recently-used (MRU) tabs.
Unfortunately, it appears to be using its own window manager, rather than the native one with mate. This means that I cannot right-click the title bar and click "Move to workspace" like I do with all my other windows. It also means that it "sticks out" quite a bit as shown below with the difference between the terminal and the opera window:
Does anyone know how to get it to switch to using the native window management in Ubuntu Mate (18.04)?