With the Mapillary API v4, all the old tools broke.
Here’s a quick Perl script to get GPX sequence[s]. For convenience, a single image ID can be specified from each sequence.
https://www.openstreetmap.org/user/richlv/diary/400630
This isn’t exactly what you wanted to do, but I don’t see how that can be achieved with the API now, and scraping the webpage is an effort I’m not ready to put in.
For my own use, I’d love to filter by user, camera and date in a bbox, but Mapillary API got so seriously nerfed with v4…