It seems that you are stuck when the installation manager appears.
I have not experienced this myself, but you might do a search here on the forum.
Use ‘stuck on installation manager’ in the search box.
Some users experienced this as well an could solve it.
For example:
Stuck on Installation Manager - Bug Reports / Install, Performance & Graphics - Microsoft Flight Simulator Forums
I do not know at which point of the startup process the content of your community folder is relevant, but you might consider renaming your community folder. It does not hurt doing so.
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