Honestly I don’t think any of these third party camera apps hold any huge amount of value until you can make it the default.
Don’t get me wrong, all of these camera apps are fantastic, I personally use ProCam and Filmic Pro.
However honestly 99.5% I go for the stock camera app since it’s just a swipe away on the lock screen.
Agree. The stock app is pretty good these days as well and has most things I'd need.