Moving the location of both the community folder and the Official\Onestore folder to a different location on the hard disk is not that difficult a process, if handled with care.
This post explains what can be done:
Eg. for MS Store users, moving the contents of C:\Users\USERNAME\AppData\Local\Packages\Microsoft.FlightSimulator_8wekyb3d8bbwe\LocalCache\Packages (i.e. both Community and Official) to a new folder, e.g. C:\MSFS and then rerunning MSFS will result in the sim detecting no packages. Content manager will then initiate and ask you to install all the packages again.
Using the “Browse” button, instead, to browse to the newly created folder, e.g. C:\MSFS will allow the content manager to detect all the content and start up normally without having to re-install anything.
This is probably the easiest/safest way to move the location.
However, take it slowly and don’t ‘delete’ anything without ‘backups’ being made in case it results in a broken installation with a full download required.
Edit: I added a forum guide on how to move the installation packages from the default location:
https://forums.flightsimulator.com/t/how-to-change-the-installation-path-of-installed-packages-inc-community-folder/471682