I need to get all railways in Germany, specifically the electrified ones, for an university project.
I found two ways of getting the data.
Download the all the OSM data for a the desired region via. geofabrik.de (als .osm.pbf) Then extract the desired railways or the electrified ones specifically. The "how" is no a part of the problem (osmosis, Osmium, ... are options to consider).
Via a QGIS plug-in called QuickOSM. The plug-in allows me to search for railways (as a key) and rail (as a value). After this I used the attribute table to get the electrified railways and saved the outcome as new layer.
Is the outcome the very same for both ways? If not 100%, if the second one extract all the data properly. Somebody told me that the shapefiles do not contain all but a small amount of attributes. Does this apply as well if I use the plugin QuickOSM?