You only need to see how young Tom Scott looks in the video to know this is indeed very old news. They seem to have necroposted this thing from 10 years ago and posted it now without any reference about when the events happened, to make it seem relevant/recent.
FitoTrack and Opentracks are apps for recording your workouts with tracking of location, heart rate and other monitoring. All FOSS and all offline. Compatible to interact with Gadgetbridge which I’m also recommending.