How to export control settings?

They are in that folder, for sure.
So is a lot of other data you do not want to put back in the sim after an update.

If you do that route, examine the content of the folders with notepad or similar.
Some will have just junk on them.
Don’t touch those.
There will probably be several folders in there with controller info on them.
You can save those, but if you replace those later, and they differ from some changes made by ASOBO, it can cause a CTD.

There is no foolproof way to export settings.