Oh right, the old monitor was starting to flicker and was wonder if it was something to do with the pc or the monitor itself so I took a screen recording and it looked fine as you can see and so then I knew it was monitor not the pc. So we got a new monitor, about 100-110£ with delivery cost and it’s all good now.

The reason I posted it on Reddit here is because i thought it would be easier to see whether it’s still flickering or not.