2 points
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The kinda depends on what SD card you buy. Don’t buy crap cards.
Also SD cards work well enough for the Switch and Steam Deck, and that’s objectively way more demanding than storing a few images on a phone.
1 point
The vast majority of SD cards are made in the same factory and just branded differently.
Switch and steam deck Don’t constantly try to enumerate/scan the entire file system. Putting game binaries is a one and done. Writing save files is a trickle every couple of minutes.
Android really does abuse the hell out of those cards.
1 point