I booted a Rock iso and ran sudo dnf dsync --refresh and I come up with 53 updated packages and one renamed and updated since the release of Rock/6.0.
Whether that is good, bad, enough, not enough, or just right I don’t know.
I would go to OpenMandriva Chat channel with that or you can open a new thread with a descriptive title and either way you need some evidence of the problem like logs, ect. Edit: I do not know which kernel version you installed. We have not had any reports of problems with NetworkManager in ROME since we backported kernel 7.0.3. Nor have we had any reports against any 7..x.x kernel vs. NetworkManager in Cooker, but that is all I know. I would suspect this is NetworkManager being finicky which it is but need more evidence no know anything for sure.