For those with a SteamDeck...

Have you tried Lossless Scaling? (the app)

https://sageinfinity.github.io/docs/Guides/start

Decky? (the third party plugin which lets you do a fuckton to your SD)

https://github.com/xXJSONDeruloXx

and now this... LetMeReshade

https://github.com/itsOwen/LetMeReShade

It's not out officially on the Decky store but you CAN manually install it if you have Decky.

Videos of worth I think are on xXJSONDeruloXx github!

OK NOW HACK THE SHIT OUT OF YOUR GAMES SO THEY RUN ON YOUR POTATO!