Not medically trained or experiencing any illnesses, but keep this in mind:
In just a few years, the medical world made huge steps in treating a lot of things using RNA techniques.
Don’t compare a situation 10 or 20 years ago with the possibilities today.
Yes, as an alternative to klipper -this really is your end goal - use the firmware by mriscoc, it is really nice and robust.
Gives you more options and the results are better than the stock fw.