That’s true, at severe angles you can wear out the CV boots and joints. Lifted could increase rollovers in severe cases and just function in the suspension on how the factory originally designed it to work. Again a lot depends on your use of the truck.
Some of those lift kits just unbolt, but you would need a lot of of the factory parts to convert it back or good aftermarket pieces. Some kits you have to cut into the frame to get on or welded on. So going back is not easy or worth it.