OpenFaaS is one option for your functions. Knative is pretty good as well for the bulk of your applications without exposing developers to kubernetes directly. Between that and Crossplane I think you have all the pieces needed to move away to a self hosted solution where you are managing either metal or VMs through a hosting provider.
I’m not sure what this looks like outside of the US, but colocation providers offer racks of machines, or to host your machines, while providing access to cheap bandwidth and peering capabilities. It’s absolutely possible to move away from the major cloud providers. However, it will require a degree of investment within your organization to support these deployments no matter which you choose, which could be a new investment compared to using AWS, GCP or Azure.
I’m not sure what this looks like outside of the US, but colocation providers offer racks of machines, or to host your machines, while providing access to cheap bandwidth and peering capabilities. It’s absolutely possible to move away from the major cloud providers. However, it will require a degree of investment within your organization to support these deployments no matter which you choose, which could be a new investment compared to using AWS, GCP or Azure.