That's interesting! I think GPS falls in the category of "works so reliably that I don't perceive it as technology" for me. But yes, GPS an underrated piece of infrastructure, even more impressive as it's globally available (edit: as in, US tech infra made available beyond US).
If you want to appreciate GPS, check out this article and explanation of how it works. It's been posted to this website a few times now: https://ciechanow.ski/gps/
