>I've seen virtually no use of Google Drive in the wild in my personal life

That's what I call a bubble.

https://www.theverge.com/2018/7/25/17613442/google-drive-one...

And that's in 2023.

As for the numbers of organizational paying users in 2023 (corporate users) were 6 million, compared to "over a billion" (in 2023). And of those 6 million organizational users of course only a smaller share are developers. Regular file sharing and G-suite stuff for office workers is the order of the day.