Is there a good way to "compare" my two vscode installations, to merge to one?

Hey folks! I've got two main dev workstations, and I'm hoping to get them to be consistent. (Likely using the vscode sync service, though I may try other things too?) Anyway, I was expecting to find a lot more in my `settings.json` than I did! How can I figure out what's in common / what's different between these? Themes, extensions installed/not installed/disabled/ and such? (Both of these are on Windows systems; my linux one is largely unused.) Also, this *isn't* a critical thing; I could probably just "start from scratch" and it would be OK. Just, wasn't expecting this to be as challenging as it is, and was hoping for a fairly easy way to "consolidate.")

Should I just try enabling the sync feature and "see what happens?"

Thanks!