Ephera , 7 days ago

Tumbleweed does also feed into Leap. Leap uses SLE packages for most of the core libraries, but then user-facing applications see new versions integrated from what’s been packaged in Tumbleweed. Particularly, they also automate lots of the package testing in Tumbleweed, so that can be reused for Leap. Well, and also for SLE, which will also grab stuff from Tumbleweed when they do plan to upgrade their packages.

As for minimal VM images, they do offer downloads for those.
On this page, you can click on “Download”, then “Alternative Downloads”.
These don’t seem to be available for Leap currently. Not sure, if it’s because Leap 15.6 has only been out for a few weeks. Could also be that I’m missing something here.

As for Wicked, they only use it for server systems as the default, and they do make it easy to switch to NetworkManager, if you prefer.