Sorry for hijacking the thread but wanted to say that I totally agree with this statement and think the same.
Whilst GOS Camera is a GREAT project, respecting user privacy and consistently improving, the fact it cannot utilize the APIs in full (which is Google's fault) makes it pretty much not good for me too as I care about quality, especially, considering that Pixel is a flagship phone with camera capabilities similar to high-end Apple and Samsung devices.
The most disappointing thing is that the Google Camera is not processing images fast enough on GOS on Pixel 7 for some reason so it makes it very challenging to use.