@KlausGerdGiesen that's strange. The video was uploaded in the official app for Android and it was apparently converted into simple animated gif. I can play it on the web, in the Android app and in Openvibe. Maybe your instance didn't properly cache it? 🤷 You can just open the post in the browser and play it there, it should work.

Strava's had it for many years. First as a public prototype/demo on their labs website, later integrated into their mobile app as a premium feature.