CV joints are affected by alignment angles, the reason they have joints to begin with is they compensate for independent movement of each wheel. if you ride on a high surface on one side of the car and the other side is lower, then each CV joint will compensate for those angles, within reason.
If the vehicle in question is aggressively lowered then id say it could be a contributing factor to them leaking but maybe not the smoking gun so to speak.
CV boots are made of a rubber flexible material, usually the outside portion of the CV joint (the side closest to the tire is considered the outer, and the joint closest to the transmission is the inner). These deteriorate over time, either Dry rotting or developing pin hole leaks either from road hazards or simply time.
If you have mechanical aptitude and patience you could change just the boots if the CV joints are not making any weird "clunking" noise while turning.
I'm an advocate for repairing parts instead of replacing. If you are not then buy a lifetime axle from autozone for $75 or so with your old one to trade in and monitor the axles over time.