Photography in general being in Legends: Arceus doesn't seem strange to me since I think that the game takes place closer to the modern era than people think. From what we've seen so far, I get the feeling that it takes place 150-200 years before the time of main series games. Since Pokemon seems to roughly coincide with the time line of the real world, this would place L:A in the equivalent of the 1800s, when Japan was having contact with Europe+the USA for the first time after centuries of isolation, and is also when photography was invented. if I'm remembering things right anyway
The phone is weird though since the telephone wouldn't be invented until the end of the 1800s, and a phone that takes pictures wasn't really a thing until the 21st century. But this is also a world where they have stuff beyond what we can do now like warp panels and the ability to safely and easily store living beings in PokeBalls and computers.
photos definitely did exist in the 1800s but you probably only got them...once in your life which is why it doesn't make sense to me why they're like the modern world in legends arceus
but it's a fantasy game with anime creatures they can do anything they want i suppose
I see some other things that people said don't make sense, but I'm too lazy to multi quote.
I do agree that being able to store hundreds of Pokemon in the PC didn't make sense back in the day, but I've seen people theorize that Pokemon are turned into digitized data while inside your pc. Definitely doesn't make sense in the earliest few generations, though, especially generation I since the internet didn't exist in the scope it did in 1996.
(I wish cloud storage could do this in real life btw)
Laughing at "a flashlight is too advanced" tbh I never questioned TMs or HMs, except for how you actually teach them to Pokemon. I know there's a cutscene in FR/LG where you put the HM/TM on top of the Pokemon's....head? So, are you just beaming the move into the Pokemon's head by placing the HM/TM there? Also don't get why they're shaped like CDs/DVDs.
I've never questioned Pokeballs, though. I do wonder how releasing Pokemon in the anime works, though, because that's never explained how the technology of a Pokeball determines whether a trainer is sending it out or releasing it into the wild.
The Holo Caster also is weird to me a bit? Maybe that's just because I can't fathom holographic devices being something that would ever catch on in the real world. To the scale they are in X/Y, that is.