1. The V1 self-tightening props can come loose with hard flying, so DJI have the "prop locks", small plastic locks that prevent any further un-doing.
2. I have had a prop come off my Phantom 3 on my 3rd flight and crashed badly because I believed the "self-tightening" myth that instills false confidence. My mistake for not tightening the Phantom props tight enough
3. Inspire props have more inertia than Phantoms because they are bigger and heavier thats why no pop locks on phantoms.
4. Some people don't like the Quick Release props on the Inspire 1 V2 so have removed the setup (a few small screws) and gone back to the original self-tightening props with prop locks.
5. You may have difficulty finding the old self-tightening props but DJI still have them. I got some the other day.