Symptoms look pretty similar for me.
I still work on the initial activation of MSFS on my probably slightly aged i7 with 8GB and a graphic processor that seems to be a bit weak. Hence, I am not sure, where else I may have problems.
But after the initial 150GB download, I manged to enter the MSFS “hangar” only once and now the 1.13.16.0 package tries to load once more.
The progress bar indicates approx. 60% when the RAM load increases up to 4GB and the update finally crashes. No chance to enter the “hangar” - initiating the restart as abmin or normal user.
Did you get any valuable hints by now?