Yeah it is a lot of horsepower!
I use my road (race) bike, the Venge. The drafting feature doesn't work at all in Zwift on the TT bike, so at least all the teams (us included) ride road bikes in Z.
At some point I could see myself doing some workouts with the TT bike hooked up, but Fiesta is close enough so it's not urgent. I might try a ITT or two eventually in Zwift and maybe ride my TT bike to make it more realistic.
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"Your beauty is an aeroplane;
so high, my heart cannot bear the strain." -A.C. Jobim, Triste