i would like to argue that these positions are Vers to Vers bottom (reminder that the last ome is posed)
here we have more of the crisscross sitting and jongin sitting in a chair with his leg pulled up next to him
overall, he sits like a jormal person usually! legs out in front, legs crossed or man spreading, but all completely normal positions
my conclusion is that jongin naturally sits on the ground like a vers bottom or bottom, on chairs like a Normal Person and he sits as a vers top or top when in photoshoots
here is a bonus gif of hongin squatting over a chair like a weirdo