I think it’s dying off. Most of it is self-inflicted by various players.
Garmin: They haven’t spent the time to ensure their watches actually are usable from a structured running power workout standpoint. So if TR for example were to make running power workouts, they wouldn’t actually work on Garmin wearables.
Stryd: Simply too expensive to became even niche mainstream. Needs to be sub-$100 at most.
RunScribe: Well, they got out of the business
Polar/Suunto: They’ve actually done a good job at supporting things, but just have the market share to move the needle.