In Amsterdam, the streetcars usually were in a dedicated lane down the center of the road, between the auto lanes. So cyclists don’t actually have to ride alongside them very much, just cross the tracks at intersections which is much much easier. Also (though it’s been a long time since I was there and my memory is fuzzy) I think the tops of the rails were kept flush with the road surface and there wasn’t such a big crevasse between the rail and the roadway as the T tracks around here.
I guess what was meant by “bike lanes” was “separated bike paths”, not a stripe of paint along the same bit of road.
Not that I’m seriously worried about anything like more rail-based streetcars happening in Pittsburgh in *my* lifetime.