There’s a thread on XDA and on Reddit showing how to install the Pixel camera APK. There’s a particular config file that must be used, but when done correctly, you can use the wide angle lens as well as the regular lens. I’ve tested all different modes (portrait, portrait selfies, night sight, etc) and they all work for me on my s10 855. I’m thrilled with this as the portrait mode on the S10 isn’t bad, but doesn’t compare to the Pixel line’s. Selfie portraits (for those into that) also look WAY cleaner and sharper on the Pixel camera app than the native S10 app, which seems to always add a skin smoothing even when you turn it all the way down.
Oh, and someone asked about the OEM silicone case. I’ve got one and i like it. Pretty minimal, but does have raised edges on top and bottom to keep the screen from touching a surface if laid face down.
Quite literally the ONLY thing that made me miss the Pixel 3XL was the camera. And now that I’ve got it on the S10 I think I may have found Android utopia!