I recently bought a Wahoo Bike and it works great on Trainer Road and horrible on Zwift.
On Zwift the bike never tilts and it is not even clear if the bike on Zwift is in ERG mode, or not. I use to find ERG mode very easily and now it seems hidden so I can’t even test if that is the problem. I have been a Zwift member for more than five years but I am about to cancel my memberships.
When my wife uses Zwift with her wahoo kickr and climbr, that works fine but the Wahoo bike ride is totally off regarding power and effort.