This is something Apple has put a lot of work into and iOS handles photography UX very well. Wake the screen and swipe left (no need to authenticate). Camera loads in about 1s on my 4 year old XS. No shutter lag so you get the picture you see in the viewfinder. Also, “Live Photo” is enabled by default which takes multiple photos before and after you press the shutter and combines it into a single entry in the UI. You can then go back at a later date and pick the best version, but your library isn’t cluttered. I hate this feature so I keep it turned off, but I can see how it would be useful to many people.
I frankly don't think apple has put enough work into it. I use it (swipe from locked screen) from time to time, but it sometimes (like gloves) swipe doesn't work and you miss the shot. You have to look and interact with the screen and that's a failure.
I guess most "i am elegant" tech companies just don't go for buttons. (apple, tesla, etc)
Oh yeah that's an interesting point. Could be a product of the environment. Product designers in Cupertino aren't having that issue, so it's probably "not a problem" in their eyes.