Resolution Scaling issue

Hi Guys

I’ve been trying for a while now and can’t seem to fix this issue on my own so I submit my humble self to the hive mind.

I have just installed Bazzite KDE on my machine in the living room it’s running an old 1080 connected to a 50” LG 4k TV, as we’re old and galloping towards blindness I’ve set the desktop resolution to 1080 so we have a chance is reading things from the sofa!!

My issue is that all 4 sides of the desktop hang off the edge of the screen I’ve played with the scaling but nothing seems to work.

I know it should work fine as the machine was previously running Mint and i didn’t have any desktop/scaling issues.

Any help would be gratefully received.

TIA

Uncle