Keep it simple.

Optech sling. Extremely light, no metal, no slippage, quick disconnects, comfortable, unobtrusive, and inexpensive.
This is what I use, and as pictured here always with two connectors for security, even when it is just attached directly to the camera. Personally I can't stand the straps that connect to he base of the camera.
This you can also detach quickly and what is left on the camera doesn't get in the way of anything.
I have broken a couple of the plastic connectors (not while attaching/attaching the camera though, so would prefer something a bit stronger. But they are cheap, so I just keep a couple spare along with a space strap connector.
I like them, but I can see how a lot of people would be put off and think there is more chance of the camera becoming disconnected.



