My friends in Munich or the Ruhr region don't seem to know of any "massive" G.fast availability... which in any way is very late to the party. But I stand corrected.

I didn't know about network equipment from other manufacturers, not sure why we're stuck with Huawei here, but it's a dead end. The plan is to migrate as many G.fast subscribers as possible to FTTH in the next 5 years, and eventually to mmWave 5G in a few corner cases.