second one call, first one probably real close but id fold might have to call in theory

Think the adjustment vs the small size is that more calls become profitable to call
And vs the bigger size the other way around

In that other spot vs the big size OOP we can fold a bit more but certainly calling KQs,AJs,99 etc we can now start folding A2s and 22-55 and such, call like 77-TT,T9s,TJs,QJs,KQs,AQs,AJs,ATs

To be fair it actually not super important what sizing they choose 3B OOP(of course it is, but will repeat not super important unless it is min 3B OOP), far more important what range they are 3betting and what poker rooms rake, and how much equity you will realize postflop (skill advantage).

Both hands can be called but gotta play really carefully anyway postflop, preflop it shouldnt be huge deal. Maybe we can talk about less than 5bb/100bb difference, seems acceptable

It all just comes down to minimum defense frequency. When Villain 3-bets smaller we need to defend wider. 8bb us about a pot size raise, so we need to defend a minimum of ~50% of our hands. I keep a PF cheat sheet in Notepad with ranges for different common 3-bet sizes, a linear 3B range from BTN and BB for use against players that over-defend and the like.