You never answered the question on whether or not you purchased the plane in 2020.
Nor apparently did you look at what was included in your MSFS2024 purchase.
It’s not like anyone cares why you thought it was a default plane. All we said is it isn’t.
If you didn’t purchase it in 2020, you shouldn’t have it in 2024. The plane has never been associated to Microsoft in any way. It’s solely a 3rd party plane.