Thanks for repeating what I already said. I responded to the question asked. OP asked if there are simpler alternatives. These are simpler alternatives to Kubernetes.
I don't know which part you're not getting, but it appears that this person's intention is not to learn Kubernetes or deal with nodes in the first place.
There is AWS Fargate for Kubernetes, AWS Elastic Kubernetes Service, DigitalOcean Kubernetes, Google Kubernetes Engine etc.
All of which are on the cloud and all of which don't require you to configure host OS etc. Some offer full control over node configuration e.g. EKS whilst others manage that for you e.g. Fargate.