Can Stops be shared outside the app and viewed in a common web browser like Google Chrome, Safari, Firefox or Explorer?

Absolutely.

Here’s a stop that has multiple photos:
https://l.stops.com/stop/136577189150721898.

 

And here’s a Stop displaying a YouTube video: https://l.stops.com/stop/120810366438475366 

To share outside the app and make your stops viewable by any web browser, just click on the share icon on any Stop that you own or that is Public.

Then click on the Outside the App option as below:

Then actually choose an option:

And that’s really it.

Note also that if you’ve shared a Collection with others, they will not be able to share it outside the app unless you, the owner, specifically have  made it Public.