Oh… it’s the same trainer.
It’s clear looking at the data that the trainer has a pretty good read on your detailed cadence, which is how it keeps the power adjusted while your cadence remains somewhat constant. The Neo, for example, can’t do this. Even if you’re using a separate PM to record, the trainer is adjusting well.
Having said that, the reading on the bike PM is **** or overly smoothed. Looks like your TR/Pedal combo overly smooths the cadence, while Strava/Bike overly smooths the load. I’m thinking the bike might be reading cadence at a very detailed level and just adjusting load accordingly.
Looks like it has a Shimano crank? Does the left arm have a bump for the PM? Can you get a pic of the bikes drivetain under the cover? Are there a series of pedal/crank position sensors? I’m wondering how their are measuring power.