k3s is probably most well known as it ships with bunch of preinstall software: https://github.com/k3s-io/k3s so you can just start throwing yaml files at cluster and handling workloads. It's what I use for my homelab.
Paid things I've heard of include OpenStack and SideroLabs. Haven't used personally by SRE coworkers say good things about them.
It's pretty minor problem overall though.
But honestly I think the big cloud providers don’t want their kubernetes offerings to be too easy to use, they try to nudge inexperienced people to use their proprietary serverless products. Kubernetes does make switching to another cloud provider far too easy ;)
I think you need to flip a flag on the cluster object to enable the Gateway controller.
Plain kubernetes is as useless as a plain Linux kernel without a userland around it, and normally you don’t want to build a kubernetes or Linux distribution from scratch.