I mean, let's look at Michael's decisions in the first two episode.
First bad decision was killing the Torchbearer. The way the shot was put together, it's pretty clear this as an accident however, not intentional. No one blames her for it in Starfleet, and it doesn't appear from the Ship of the Dead dialogue this matters that much.
Michael then convinces Georgiou to lock weapons on the cloaked ship. Georgiou agrees, the ship decloaks. Michael wants Georgiou to fire. She will not. Michael then attempts to disable Georgiou and assume command. Somehow this is considered "mutiny" even though she has no co-conspirators. Regardless, this is why she's drummed out of Starfleet. Notably Georgiou recovers quickly and does not fire first.
There are some odd scenes on the Ship of the Dead - where T'Kuvma mocks Starfleet for saying "we come in peace" which actually seem to imply if Micheal was successful the war might have been averted. That is to say, Micheal is actually doing the right thing in the global sense, even if it's bad for her career. It's never examined again. The Klingons fire first - which would have happened no matter what Micheal did.
They decide to put bombs in corpses - an outright war crime that no one gives a shit about - and disable the Ship of the Dead. Michael and Georgiou beam over in an attempt to capture T'Kuvma alive and stop the war. Georgiou gets killed in a fair fight, and then Micheal deliberately turns her phaser from stun to kill and murders T'Kuvma. Here she arguably makes a deliberate decision which causes the war, but the plan to capture T'Kuvma was hatched by her, Georgiou, and Saru, and even Saru wouldn't have known she murdered T'Kuvma. Regardless, it's never mentioned she killed in cold blood again.
So yeah, pretty fucking confusing.