Been experimenting a bit with 360 photos in Mozilla Hubs. They are just part of an empty room, so you can add 3D objects "inside" the photo, although without any scripting you can't create hot-spots as such. You could though add links from one to another - but on its own that's not a smooth transition.
What does work well though is the ability for the room owner to load scenes around the participants, so you can do an immersive slideshow, everyone starting in one place, and then load a 360 around them, and then another one and so on. If you added a map or 3D table model like the one below you could end up doing quite a nice human-guided field trip/battlefield tour/holiday slideshow.
The photosphere shots here are ones I took on my iPhone at the base of Uluru, and apart from a few glitches at the joins they come out pretty well in Hubs.
Of course the nice thing about using Hubs for something like this is that its very social and involving - everyone sees the same image at the same time, can see and talk to others, and naturally tends to move around the space towards the bits of the photo they are interested in so larger groups naturally fragment to smaller groups if desired - which with spatial audio enables lots of parallel conversations to go on.
And here's more of a heritage/built environment shot from Hougoumont Farm on battlefield of Waterloo.
Just get in touch if you've got a good idea of how you might be able to use this approach to 360Vr in your teaching/training/education/out-reach.
