Opinion on mirrorless cameras that are simple

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What does “all in one” mean?
Nevermind I see what you mean fixed zoom lens. It’s similar to my very old Olympus C5050-Zoom. It shot raw, tiff, awesome jpeg, and could be put in manual total manual. It was an excellent fixed zoom lens camera. It even had a flash shoe and flash sync port. I shot lots of studio portraits with it.