In researching our next trip I've watched a lot of YouTube videos - starting of course with RS excellent ones. Some others useful some not so much for me. Then I found a large series by an American expat living in Zurich. Her name is Sarah and the series is called " How to Switzerland ". Some videos are more expat oriented but plenty as well for us visitors with useful tips, ways to save money, the culture, etc. The link below is one of the best explanations of public transport - particularly in Zurich - that I've seen. Like she explains how to buy a ticket, read the schedule, what the electronic board at the station is telling you. Those little things that aren't about language barrier but are about understanding how it works
SWITZERLAND | How To Take Public Transportation (Train, Tram & Bus in Zurich)
Hope some of you find this useful.