I've watched a video of hers before. My takeaway was that Microsoft is a heavily bloated company that suffocates internal development but with the OG Xbox and early 360, they were like a side bet that didn't have a great deal of oversight from MS Windows/Office/Server mega money eyes.
They didn't have a great deal of internal dev studios but they were really good at identifying third party exclusives to pursue and early on managed them and the few studios they did fully acquire well. It worked well for the first Xbox and first half 360. It differentiated the Xbox/360 from Nintendo and Playstation
Then I guess success led to changes in leadership aimed at growth and using Xbox as a platform to push more MS services and they lost the focus and ability to identify and secure great third party exclusives. That coupled with not having internal game dev teams in numbers and experience like Nintendo and Sony meant if they didn't hit with their living room smart device dominance ambition, they'd just have a worse PlayStation. That's what they ended up with with the XOne - a worse PS4. Then it happened again with the XSX because of lack of execution with their internal studios. An XSX just became a PS5-lite library-wise