Have you tried Obtanium? Allows to download and update from github, among other sources. There's even a site with source configs that's very helpful, and includes firefox.
Tell that you every single digital camera. Very few output RAW by default, many don't even offer that option. This isn't a "phone cameras" issue.
The fact that you think post process is compression says a lot, or that there's no reason to apply post process when 99.9% of the population don't even know what RAW is and won't benefit from it.
Again, you want a proper camera, buy a proper camera. But learn a bit before
Just to be clear, unless you're shooting RAW you never have your "real" photos. Every phone/camera performs massive amounts of post processing, including using ml models.
AI is only a buzzword for something that has been the norm for a while.
So long, and thanks for all the fish