Okay, so my OG Switch HDMI cable gave up after YEARS of abuse (RIP buddy). Grabbed this Master Cables one as a replacement and... wow? For the price, I wasn't expecting much but this thing's legit.
The 4K/HDR actually makes Breath of the Wild look insane on my TV - like I'm noticing details I never saw before. And zero lag during Mario Kart races which is CRUCIAL when you're trying to blue-shell your little brother last minute.
Weird bonus: The connectors feel WAY sturdier than Nintendo's flimsy original. Mine survived my cat using it as a chew toy (don't ask). Also works perfectly with my PS5 which is handy since I only have one free HDMI port.
Only complaint? The cable's a bit stiff when new - had to unkink it like those old phone cords. But after a week it loosened up. 10/10 would recommend to any Switch owner whose cable is on its last legs.