Video switching on automatically when press the 'x' key

When I am in a Zoom meeting and press lower case x then the video automatically starts, how can I stop this from happening?
I'm using Windows 10 Enterprise v22H2; Zoom Workplace, Version: 6.2.3 (47507). I'm also using Open-Shell (so menus and look is on a previous Windows), but I can't see how this would affect things as no short cut keys.

I haven't had this with other programmes.