Watched/listened WillyOAM's video with AMK Mapping and Alex of Historylegends. All in all, it's breddy gud.
Problems: not really a conversation, everyone said their piece and they hummed a bit and moved on to next topic where they said their piece and hummed a bit...
AMK feels out of place. I think his medium is "paper" (in written form) so probably not used to presenting his opinions verbally, so he doesn't seem collected enough. Felt the same in case the previous chat with Matt.

As I read Glantz's book about the Soviet operational art I heard some stuff in this video that's highly related, but have to give it a listen again.

Motivated by what I'm reading in there I might look up the Winter War, that is Finland vs Soviet Union (1939-40) for there seems to be some parallels.
The SU had a hard time there. They attacked with mobile units with tank formations but they got wrecked and had to change their approach, reorganize how they operated, rethink the use of forces. Essentially the reality of war, the available tools denied the mobile warfare. Just this war.
And then Finland got defeated had to give up territories. Right now the Ukraine war looks like this will be the outcome. But this is still in the future, so we'll see.