I remember the good old days, when CPUs just didn't need heat sinks or thermal paste... life was so much simpler then!
I believe my first active CPU was a Pentium Overdrive, which had a tiny little fan that would snap on. Then it was plenty of socket 7 KII and KIII, I guess.
But the most satifying pasting experience after all those decades was actually applying liquid metal to a nudist die some months ago, because it was very easy to apply just enough of it to have it spread the entire chip, while appearing much thinner than any paste job I'd done ever.
It also turned that i7-12700H into a speed devil, so I'm much more into liquid now, than I've ever imagined possible.
Still, haven't had neither paste nor liquid since, everything since came pre-assembled...