Most of the workouts are incompatible with Fenix 6X Pro. I cannot send them to the device. What am I doing wrong?

In the connect app I see a whole bunch of workouts (under training).  But whenever I try to send them to my watch (Fenix 6X Pro) it says I don't have any compatible devices.

I found one that works but most of them don't.

Those that don't work are nothing special, for example, the 40/20 squat thrusts which is just 10 rounds of squats is supposedly not compatible while the one that I managed to sync also had squats.