Interesting question, one I hadn't thought of other than in feeling there is context of some form of representation in all character, but in Star Trek that has been its foundation. Michael is representative of a woman, a thirty-something female humanoid brought up in family where she was adopted, her parents sharing Vulcan and human heritage. She's disciplined, intelligent and schooled in matters of science and combat, and she's kind of fucking boring.
She to me is self-involved to a painful level that is almost sociopathic. Me me Me me ME ME. That is her filter. From her dreary voice-overs to her sad emoji expressions, she is so introspective that I do think she sees the world revolving around her. All those multi-universes just satellites to the brightest star in all creation - Michael Burnham. She is written that way...
I'm not sure she made much advancement in this arc. Just because her threat of mutiny in the final episode had the desired result does not justify it. Does not show growth. All we got to see was that the first time she did it she got a redundant prison sentence (insert rolling eyes and mockery here). The second time she gets a bloody medal (insert rolling eyes and mockery again). Michael IS entitled and she is representative of that. She knows more than anyone else. She's can kick arse better than anyone else. Better scientist than anyone else. Holds the record of going on all the away missions. Every older character wants to be her parent, lol. She does no wrong even when she does wrong.
Everything will come up Burnahm! That's funny, Groppler.