Nobody seriously uses AWS/GCP/Azure to have a couple VMs or dedicated servers alone. If someone can run their full workload in e.g. Hetzner without much hassle then they shouldn't be using any of the other cloud platforms in the first place as they'd be definitely overpaying.
EDIT: I want to clarify that I unfortunately do know some companies use the big 3 as simple VPS providers but it seems that everybody agree here that it's a waste of money and that's one of my main points, which is also why the comparison of the big ones vs Hetzner or any other standalone VPS/dedicated server provider is pointless as they serve different use cases.