Right.

Depending on my client's needs we do it oldschool and just rent a beefy server.

Using your brain to actually assess a situation and decide without any emotional or monetary attachment to a specific solution actually works like a charm most of the time.

I also had customers who run their own cloud based on k8s.

And I heard some people have customers that are on a public cloud ;-)

Choose the right solution for the problem at hand.