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WWhat do you mean by "rearranging or sorting" them? Most gallery apps can display in different orders, though most also default to date/time last modified. So which order are you after, and did you try selecting that in their settings?
As for "screwing with them in any way", what does that mean? Is separating them by source (Camera, WhatsApp Media, whatever) "screwing with them", or is merging all of those together "screwing with them". Or do you mean something else entirely?
If you are clearer about what you want it will be easier to help you. I know it's probably obvious to you what you want, but to the rest of us, who have no information apart from the 40 words you wrote, it's less clear.