At the very least we can say Baekhyun’s sales were never inflated

yep, if anything his sales were deflated by SM; they wanted him to get to 1m sales so they could mediaplay about him, but after that they haven't restocked his albums at all in the last 5 years basically (and obviously aren't going to ever again).

Baekhyun is just so consistent, he is NOT slowing down! He has album sales + tour attendance!