Would like to add a little context to this for anyone who isn't familiar-
For all the intelligence and engineering prowess of Germans, their Internet infrastructure is severely lacking. Most places I'm aware of have poor connections to begin with but also still meter every kilobyte that you download, so Germans are really far more conscious of payload sizes than most Westerners are, where internet service is just a flat fee.
It's really strange when so-called "second-world" countries like Bulgaria and Romania have far better Internet than Germany
The AMP site is unusable far more often than not. My phone has had a 100 Mbps connection for years, yet opening webpages is slow because I need to manually mess with the page so that I can get a working webpage.
I'll take +250 ms load time over fiddling with the page for 5 seconds and then having to reload it anyway.
AMP might be faster if you browse the net with javascript enabled by default and with no content blockers enabled. But if you don't do those things, AMP is a clear net-negative.
Every site in Germany is 10 X bigger in normal browsing compared to AMP.