Whether it is useful for A-GPS does not matter. It must be done on top of the operating system or not done at all.
I like this idea in principle, but I have bad news for you if you ever want to own literally any modern device - phone, laptop, tablet, car, TV, rice cooker etc
The only solution is some kind of network-level allowlisting which would be impossible to maintain, and stop working the second you’re outside a known network (ie LTE)
Qualcomm's userspace shouldn't be doing this.
do this via mighty-snitch[1] on any postmarketos phone. any network request passing through the linux kernel gets filtered.
still hosed if it’s hardware level nonsense unfortunately.
the only reason i’m not daily driving postmarketos is lack of gpu acceleration for firefox. hopefully soon!