Context: Reddit OP is a competitive powerlifter/coach and they were talking about Chaeryeong being able to squat 200ibs easily at any given time and this was one of the comments
Thread:

I am confident that Chaeryeong can squat well over 200 lbs or almost 100kg at any given moment.
I’m a competitive powerlifter/coach and can guess how much people can squat (with some room for error) just by looking at them. If you don’t...
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I believe it!
I remember when these airport photos trended for his booty shorts and muscular legs (and he was less beefy then)
And now