p.s.: photo's in the forum post along the trajectory; open for feedback in case you see distinct items of a railway. In Dutch, sorry about that.

I've also added some missed still existing railway tracks: https://www.openstreetmap.org/changeset/139189762
(By comparing PDOK imagery from 2022 [default in iD editor] and 2023, you can see that some additional rail had been removed this year, hence some of your railway=disused has been changed to razed by me)