it's just a proof of concept, but this web site discussed a few weeks ago absolutely blew my socks off:
discussion:
https://news.ycombinator.com/item?id=20929801
site:
https://3dforreddit.com/r/pics
From a comment:
"
How to use it Desktop: Click to start, WASD and mouse to move
Mobile: Dragging on left half of screen is move, right have is look
Append any subreddit to the url to switch subreddits
"
It should work in any browser but if you have a good GPU it will help a ton.