https://www.bnionline.net/en/news/why-are-battalions-leaving-mod
Myanmar's rebel "National Unity Government" ("NUG") is bleeding soldiers. The "Spring Revolution" has been going on for years now.
NUG has been playing the part of good socialists, with committees and meetings gobbling up their limited financial resources. Not enough money for the military. Their military is walking away from it.
The formal Myanmar government is doing the opposite. They are drafting people to be soldiers. It will take years for this reshuffling of society to produce results, but the formal government is winning.