@pocketvj not the version I was using. But #gnomemaps very recently added initial support for offline map tiles:

https://gitlab.gnome.org/GNOME/gnome-maps/-/merge_requests/512

So tl;dr

It's getting there soon :)

Add support for offline map downloads (!512) · Merge requests · GNOME / gnome-maps · GitLab

Add support for downloading map tiles for offline use, and a Preferences dialog where you can manage downloads. Tiles are downloaded from a

GitLab