this is good, there's money to be saved in many many cases with self hosting. Cloud was supposed to save money but it's gotten so overdone that now companies have dedicated devops teams just like they use to have dedicated sysadmin teams. I think you can take the opensource paas's out there and selfhost something internal that covers 75-70% of your use case at a fraction of the cost of aws/gcp/azure.
The price of hardware (DELL, HP), and the price of enterprise software (VMWare, Nutanix, etc.) has increased an insane amount in the last 12 months. In our case some of the services it has been as much as 6x. Hardware quotes are rising 10-20% per week. Delivery dates are months out.
It has become so bad that we're considering moving to the cloud for our on-premise workloads. Only problem is some of the cloud providers in the areas we operate from have run out of compute.