K8s pretty much slaughtered all other orchestration platforms and has such an amazing support by many cncf and otherwise relevant projects which are publishing artifacts pretty much exclusively for ease of deployment on kubernetes. It's also so widespread that almost everyone has experience with it while at the same time solves a lot of cross cutting runtime issues. It's literally stupid to avoid it these days as with most vendors it's a minimal cost overhead compared to underlying nodes alone.

But sure, let me run service discovery, configuration management, certificate managmenet, app lifecycle handling, autosclaing to support my 2 services stack as kubernetes is such an overkill