Yesterday I was trying to troubleshoot the flickering TDS GTN750Xi in the 182RG in 2020, and after starting the game several times after trying different things, 2020 all-of-a-sudden wanted to redownload itself (148GB) and now it crashes to desktop every time on loading, when it's about 50% done with the loading line at the bottom.  I've been keeping up with the several threads about shutdown issues with 2020, but am curious if anyone is having trouble starting 2020 in the last several days?

Try renaming the Community folder and run MSFS. If it runs OK, then you need to find the culprit file in the Community folder.