User Indoor Ride Profile without Smart Trainer?

Dear Users,

I'd like to record my indoor rides with the fenix6, BUT, will it work if there is no smart trainer connected? I'd record there rides with a paired powermeter, which delivers power, speed, cadence and distance. Will it work or does the fenix expect or even enforce it to be paired with a smart trainer while using this profile?

I'm asking this because I do my Session using Zwift and Zwift will controll the Kickr, but I still want the advanced metrics, so the Kickr would be paired as a normal powermeter to the fenix.

Kind regards,
Mike