How to make green exercise ring track properly?

I close my move ring every day. But I can almost never get my exercise ring to close, despite exercising. It’s frustrating, especially as I searched for this problem and can see it goes back as far as 2015. That’s 8 years to still not be working for a device that costs hundreds of dollars!?

I have tried using the workout feature. Sometimes it works, sometimes not. If I don’t wear the watch, I can add a volleyball workout easily and it adds to my ring.

But I can sit on an exercise bike for 47 minutes and have nothing show up. Sometimes half of it will count. It’s so confusing and demotivating.

How do I tell Apple to count ALL my workouts as exercise?? I don’t care if I’m not exercising like an elite athlete to some lofty standard, the point is I’m doing something and my heart rate is higher than it would be if I had stayed sitting on the couch so I want to see credit on that green ring and have a record of how I got it eg volleyball, cycling etc.