Bottom-line up front. No problems, here.
Just to expand on my recent experience concerning this subject:
I have no free add-ons, nothing in the Community Folder. Only purchased add-on is the Waco YMF5.
I have removed all the original aircraft and Bespoke Airports that I never use or intend to use. (That frees up considerable space on the SSD, BTW.) Total hard drive space used by my MSFS - 90GB.
Checked my Content Manager, this morning, and found a downloadable 50MB update for Stewart International Airport (KSWF). Downloaded and installed it without a hitch - super fast!
All flight log information, accumulated hours, etc. are still there from last August through today.
Hate to pontificate too much, but my thought is that during these still very early days of this highly complex simulators deployment, if you want to minimize issues and not become essentially a member of the “tweak and test” community, just stick to the defaults as much as you can tolerate…