Which is fair. Fedora never called itself red hat. CentOS never called itself red hat.
Suse is a pretty good company and deserves the right to their intellectual property and trademarks. OpenSuse shouldn't make a big deal out of simply changing their name.
They could rename themselves to OpenSusame and keep rolling without any issues whatsoever.
Of course, but I still think it is not very smart from SUSE, since I bet many companies got into SUSE because coworkers had very good experiences with OpenSUSE.
I, at least, if my company would need corporate Linux, would recommend SUSE to my company because of that reason.
Basically yes. Rancher Desktop sets up K3s in a VM and gives you a kubectl, docker and a few other binaries preconfigured to talk to that VM. K3s is just a lightweight all-in-one Kubernetes distro that's relatively easy to set up (of course, you still have to learn Kubernetes so it's not really easy, just skips the cluster setup).
I am exposing docker via tcp in wsl and set the env var on the host to point to it. A bit more manual but if you don't need anything special, it works too.