This is not about tinkering. My phone is a toolbox, the apps are the tools and Google keeps breaking them in order to make their tools seem better. I need to get real work done using my phone and being able to sync files with a server is a critical part of that. I can't use Google Drive instead for many reasons, but that's besides the point, because this is illegal anticompetitive behaviour.

As far as I know, Apple also doesn't let you sync folders like this, so that's not a solution. And regardless, Apple cripples many other tools that I rely on.