@silverfox66
I am running opera version 99.0.4788.13 on Opensuse Leap 15.4 (kernel version 5.14.21-150400.24.63-default ) on a fresh install. My pc had windows 10 for some work related stuff which I am done with, so I install Opensuse Leap 15.4.

The main issue which I have experiecing is the right click issue as described in the original post.
The reason which I posted the message was because I felt that I had found a way to trigger the issue so hopefully someone at Opera can solve the issue.

The issue seems to happen when you maximize a youtube video, switching to full screen video, and afterwards you restore the video, exit full screen video.
So maximizing and restoring the size of the video is where someone should be looking.

Minimizing and maximizing the opera window will solve the problem until you maximize another video, enter full screen video. Or you can switch to another program and back to opera.