Unable to answer "Do you have to pay to use this restroom?" – inside: Restroom – https://osm.org/node/4118988689 via StreetComplete_ee 58.0:

There is no Toilet in the middle of 2 tramway tracks her, not even close. Atm, I'm standing exactly on this spot.

Attached photo(s):
https://westnordost.de/p/221903.jpg