I have a XC race bike and CX bike.
The CX gets used on the turbo trainer, for commuting, road training rides, and CX racing.
The XC gets used for all off road rides.
Ideally I’d like a 29 rigid Afline bike for general off road use so I could “save” the race bike for racing. However at the moment I just change wheels on the MTB to race or play depending on the ride.