@pa27
First of all, @panoramax is a very young project, so coverage is quite small. Only in #France - where the project started - there is significant coverage.
Because it is federated and self-hostable, it was a fitting solution to host the images that people take when contributing to #OpenStreetMap with #MapComplete
About the 'WebGL': MapLibre depends on it to render the maps. Some browsers do block #webGL to resist fingerprinting. You might be able to enable it per website.