HVAC Question: Mismatching Inside/Outside parts of a Split?

HVAC guys, please bear with me and don't eye-roll too hard as I over-engineer myself into stupid situations.

For split systems, with a blower inside and a compressor outside and refrigerant lines between them... is there any real reason that the two components need to be built for each other? Obviously the refrigerant technology needs to be the same, and also obviously the flow rates for each would need to be within range of each other.. I'm not suggesting mating an R22 central blower with an R410a compressor, or trying to connect a 1T mini-split blower to a 5T condenser. But, is there any reason that an existing and healthy 3T Trane blower couldn't be connected to a new 3T Carrier condenser?

And, where I'm really going with this... if the above is no problem, would it also be no problem to hook that 3T Trane blower up to a 3T R410a geothermal unit?