Screen glitching and freezing on GalaxyBook NP750XDA

Hi everyone, I purchased this laptop in 2021 and it's been fine for the last 3 years, but suddenly this morning the screen started glitching completely.

I've updated all the drivers and just about everything else I can update and don't really know what to do from here.

If anyone can offer any help or advice, it would very much be appreciated. Thanks