Such life would not be limited to human forms.
Even with just human forms, if you're going to all the trouble to engineer custom life, why make that life anything other than your idea of perfect? I don't know for sure, but I suspect that a predisposition to obedience to authority figures may be engineered; some would want that in their own children, others in what may be de jure servants and de facto slaves.
Last I checked — a few years ago, and this is a fast moving field — we can't currently 3D print large complex living structures, only simple and small because of the oxygen diffusion limit; if we can engineer around that, even if you still needed to replace the brain with a computer and nerves with metal, you can have a "real life centaur ride" or dragon drones.
If you do that but deliberately replace the brain and nerves with electrical equivalents, you have remote controllable meat[0] puppets making bodyguards redundant (the person being protected can just be remote); making worthless eye witness accounts, DNA tests, and fingerprints; and what happened with DeepFake porn then happens IRL with sex workers puppeting everyone and everything from Addams Family's Thing to Westworld LARP.
The landscape of possibilities and preferences for these things may be radically altered by other related tech. For example, skin samples can be grown in vitro and transplanted back to a human (IIRC this is already done for severe burns victims), combine with suitable GM (IDK, spider silk perhaps?) and someone could become naturally bullet resistant, radically changing not only the nature of bodyguarding but also soldiering.
[0] well, not necessarily meat, it might be made from GM fungus cells or plant cells, but it could be made to look arbitrarily close to or far from any of those things