[deepl_derber]

I disagree - rclone can solve a substantially simpler and different problem (i.e. computing the size of a specified hierarchy on-demand). Being able to store and produce sizes of arbitrary folders in Drive for however many millions of users in a reasonable time frame is a substantially more challenging problem, and what we're talking about here. Google probably hasn't provided the on-demand version of this because it's trivial to script with their API.

Given that Google does offer you tools for managing your quota, and knowing it's a very difficult problem to solve, I'm disinclined to believe this is malicious or incompetent.