OpenCamera has a lot of features but isn’t very modern or point and shoot.
It also has limited support for additional cameras.
Aperture exists because most vendors fail to properly expose the additional cameras, so Lineage hardcodes the values in for all the devices they support.
It works well, but the defaults could be better.
SecureCamera works well too, and Pixel’s properly expose their additional cameras so zoom is very seamless. Defaults are also good.
Really just try them and stick with what you prefer.