This seems cool. In the recent past, I have made custom styles in mapbox studio, then used that as a basemap (via WMTS) in qgis. The dealbreaking issue at the time was that when exporting my maps to PDF, the basemap elements would scale based on the export’s DPI. So, a high quality map would have teensy street labels, and was thus unreadable.

So, curious to see if this new method of loading tiles resolves this issue (or, if a more recent version of Q resolves it - as I was using the previous LTS last time I tried this).