While looking through my installed programs, I noticed that SimConnect Client is installed. I do not remember installing it. Maybe it was installed with an add-on. I have not downloaded or installed the SDK. Is it part of the MSFS2020 install? I am on the MS Store version. Is it safe to uninst…

Absolutely not, never, no way Jose. Do NOT uninstall this if you ever want a chance at making sure your sim works properly with any other 3rd party program.