The A71 came out in 2020, which was about when Samsung was phasing the jacks out. And they took them out of the S line first, which I always thought was weird - for a while, you had this feature that was present in their mid range phones, but completely absent in the more expensive flagships. They’re not the only ones that did that, of course, but it does seem kinda backwards.

My Moto also does per-app volume, and I agree, it’s pretty rad.