PSA: These respawn.

Lol. Because if you still have like 500+ chests remaining in the world it would explain why you might think some chests you're finding are respawned. And as I said in my previous message which you just ignored, it is very possible that new chests spawn (rather than respawns) upon increased world level or some other form of progression. Coincidentally every person who still thinks chests respawn are still missing a lot of them while everyone I have spoken to who knows they don't respawn have found almost every chest as I have. I guess you'll have to wait and see that those "respawned" chests don't exist anymore when you've found as many as I have, peobably the only way you'll come to agree with me. Talk to you then.

/r/Genshin_Impact Thread Parent Link - i.imgur.com