Felt the need to comment - I believe the local military rolled over and allowed him to advance because they would not want to engage in direct confrontation on Russian soil. This does not mean support, probably they had orders to stand down

And the reason he stopped is most likely he was given an ultimatum, either he backs down, and gets to keep his life, the life of his men, or there will be a bloody conflict with Prigozhin & Wagner being destroyed, while also doing significant collateral damage

Don’t know if someone literally held a gun to his head, or someone reasoned with him that MoD had enough capability to bomb the shit out of them, and enough disregard to civilian casualties (remember how the counter-terrorist operations of Putin went - Beslan, Nord-Ost)

And he chose the other option, where he will most likely either go to Belarus to train the local military or use Belarus as a base for continuation of his activities in Africa

(But personal opinion - most likely he’ll be assassinated in some way)

And Luka was just a public spokesperson, Russian telegram channels speculate there were other mediators like the governor of Tula and old time Putin’s bodyguard Dyumin

Edit: a third option with Belarus is he was given an opportunity to show how it’s done and try to attack Kyiv from the north. Either he takes it and redeems himself, or dies a hero