I’d like to suggest including any public transport platform for foot routing.
Yes, they can technically be closed to the public, but I’ve never seen that happen in Berlin unless the station itself is out of order, under repair etc.
I understand including stairs may not be the best option and potentially lead to longer travel times.
This includes subway platforms, they could make a route underneath rivers or big road crossing.
If the forum is the wrong place, I could just as well open an issue on github, but the bug report template made me come here instead, there was no option for feature requests.