Does VAC still even work?

Valve doesn't care about this. The main thing is that they buy cases. At +20k rating, cheaters are in every other game.

Don’t be too quick to bury VAC, bro. Ban waves don’t hit right away. The guy still thinks he’s playing chill, but one morning he’ll wake up and his account will be gone)

That's just a basic CS challenge, just beat the cheater

Come on, just play for fun. There have always been cheaters in CS, but when you outplay someone like that by skill, the hype is x10

VAC works just as reliably as 64 tickrate. In other words, not at all