Yes. Because I intentionally design systems to avoid vendor lock-in by, at the very least, including a plan to export data and keep IaC in a repo so that it can be used to redeploy at either another vendor or colo-based servers.

Here's some good tools to do so:

• Foreman Self-managed Metal-as-a-Service/VM-as-a-Service orchestrator. It's FOSS.
• Terraform Formerly FOSS, now moving to BSL due to service providers taking advantage of them. IaC tooling that allows one to rapidly deploy and manage infra on multiple platforms.
• Keycloak FOSS IAM platform that's pretty straightforward to use.
• Talos Many choices here but I've used Talos before. It's a FOSS K8S-specific Linux distro that is designed to be platform agnostic and auto-deployed with a simple config.
• Helm K8S deployment manager. Need a DB? You can probably find a chart.

There's a ton of other possibilities but FOSS and source-availabile licensed software makes it pretty straightforward (though still time-consuming as no infra is fully cloud agnostic due to non-standardization between the big three in infra primitives).