CS2 feels so much smoother than CSGO. CSGO was already smoother than valorant. Valorant punishes anything beyond 50ms to an unplayable extent. There's also other mechanism you have to take into account, like the anti wallhack system making models magically teleport into your screen because it's refusing to register them clientside before.
The only reason this isn't a big deal is because Riot are refusing to add replay systems. So all you get are these videos recorded client side without knowing the full picture. They even removed slow-motion replays from VCT because it made the game look horrible, as it is. And that's the issue, server side you hit the headshot but in your screen you were nowhere near and vice versa. And this is happening constantly. People who should be in your screen aren't and vice versa. It's so poorly optimised and if you had replays like in CSGO you'd be able to hold them to higher standards.
The fact alone that two people constantly see completely different things, (etc when two streamers play) from the reality of the server is just bonkers. It isn't the tickrate, it's probably something much worse than that.