Interesting workaround would be to install Brouter, and when installed, configure the OSMand to use Brouter as the 3rd party offline routing engine, e.g for bicycle profile.
Note the segment3 Brouter data to be present.
Brouter has profile approach, and moped os one of predefined profiles, and the author is even German, so familiar with DE scenarios.
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Please, forgive my brevity.