The LG 5K has all the benefits of Retina 5K and most likely is the exact same panel. The biggest downside is the slower USB-C ports (5GB vs 10GB).

The camera isn't technically as good as Apple's, but it also doesn't rely on Apple software. It can raise/lower and tilt without paying $400 extra. It has a black plastic frame which doesn't look as nice, but the glass won't chip if you bump your laptop into the side.

If I didn't already have an LG 5K, I'd buy the Apple Studio monitor. I used my previous Thunderbolt Display for over a decade. That should be sufficient time for someone at Apple to fix the camera bug.