Is it possible to add vector tile sources (using MapBox's protocol buffers format, or GeoJSON, or otherwise) to QGIS? If so, how?
(My question is a bit similar to Can the new Mapbox Vector Tiles be used as a QGIS basemap? but isn't restricted to MapBox sources, and isn't just about basemaps or OpenLayers.)
Best Answer
Vector tiles are now supported directly in QGIS 3.14+:
https://www.qgis.org/en/site/forusers/visualchangelog314/index.html
https://www.lutraconsulting.co.uk/crowdfunding/vectortile-qgis/