Create manual snapshots in Kionite 43

I know Kionite already creates images it can fall back on if an update fails. But i think I want to create a manual snapshot if I plan to test a new software or try something. That way if i don’t like what I installed or changed, I can revert back.

Fedora came with Btrfs-Assistant, which works great. But that isn’t available in Kionite repo or flatpack. Is that hidden because it would cause issues in an immutable?

Or is my whole idea moot?