Just by VPIP and PFR you should understand that BTN player is pretty solid for the most part and should have a good idea on what's going on. With that being said and with no other info (your image against villains, your activeness at the FT so far, if your known as a reg/rec player), I actually like open folding to the 3-bet. It doesn't make any sense to call because your only set mining and 4-bet shoving against a player with that kind of VPIP and PFR is just not smart knowing that your flipping a VERY VERY small % of the time. You didn't play it terribly by any means, I would've saved the 3bb though by just folding to the cold 3-bet. Gl buddy.

Ya, a lot of this has to do with dynamics between you and the btn so far; it's hard to answer the question without seeing how it was playing out between the two of you or just in general how he was playing, how he perceived you, etc.

I probably flat the 3B too much here, and maybe a 4B or fold line/strategy is better.

Given his stats, a fold might actually be right bc of his range, relative postiton to you and ICM...you do have a semishorty playing too.

fold to 3bet in this spot is bit weak and exploitable, 5-handed and button cover u, with fish bb send in dead money, just 4bet get in.