That's the "politics" here.
E.g. In Munich (> 1000.000 inhabitants), there are only some parts of the city connected to glass fibre.
My house is located in a part (really 3km to the Marienplatz) there is NO!
glass fibre availabe. We are WAITING here since many years.
But the public money is usually wasted for other things!
I use telekom Magenta S (cheapest tariff : 14,51, 2,38, 18).
But I'm not sure there will be more capacity if I change to an expensive one, promising more speed.
(Old copper is old copper , and there are many users here in the line)