The museum railway DVZO near Zurich used a steam locomotive to remove snow on 2019-January-25.
A Youtubefilm published by RABe514
Two years later, 2021-Januar-15, there was much more snow in the Zurich region.
Snow around Bäretswil was removed by ST-Bahn, the company now responsible for the infrastructure.
A Vimeo video, produced by ST-Bahn.