Can also confirm. I’m just the opposable thumbs holder for my cat’s selfies.

Pterodactyl is probably the closest I’ve personally seen to what you’re looking for.

https://pterodactyl.io/

Short answer: Canonical is strong arming Ubuntu flavors into removing support for alternatives to snap (that run better and do the same thing). These types of decisions are generally worse for the overall Linux community.

Right now, a part of the Linux and Open Source communities are distancing themselves from corporate-sponsored projects given issues we’ve recently seen with RedHat’s CentOS and Canonical’s decisions with Snap and LXD