Steam Deck colours are off worse than Switch V1

I assumed Steam Deck screen supposed to be better than a Switch V1 as many people said Nintendo cheaper out with the screen on that. I didn't realise Steam Deck is even worse than even a Switch V1 screen which wasn't good to begin with.

How do I know this.

Well I played Mario World on both Switch and Deck at the same time and directly compared and on Switch the game looks more vibrant where as on Deck it looks washed out.

I then tried Remote Play on both Switch (my switch is hacked) and Deck. Playing Spiderman on Deck he looks more orange than on Switch where the colours are normal. I even double checked to ensure HDR was turned off.