That's clearly false, and feeling the need to include "if you're careful" in your statement exposes its falseness. No other major manufacturer makes power cables that chronically disintegrate like this so much that it has become a meme specifically about Apple's cables: https://imgur.com/AVP6riy
Not unsleeved. Disintegrated. It's because the material they use is soft and extremely undurable, unlike literally every other major cable manufacturer.
Apple's cables, and _nobody_ else's, do this when even the slightest amount of angle is applied: https://i.imgur.com/seu0xh8.jpg
Look closely at the circled part. That bulge is caused by extremely soft sleeve material that isn't bonded to the internal wires combined with inappropriately abrupt strain relief. That bulge is why Apple cables disintegrate so often, and even just the downward force of gravity from a laptop being on the edge of a table with the power cord dangling off the side onto the floor is enough to cause it over time.