Hello! Im having trouble with certain spots in zoom, please advise me if you may.

SB vs BB 3B Defense range.

I feel like altho its advised to call all pocket pairs to a reraise that 22-77 just plays horribly OOP and maybe should be folded? and I assume we shouldn't ever be calling flop range bet since we don't have the pot odds, also IP? What hands would be a good 4B defend beside obv KQo,KJs? Is A(2-5s) a better 4B Bluff in these kinds of spots then lets say QJo,QJs? Or do we get in trouble due to ending up in a low SPR spots with a dominated ace unless we hit 2PR? Also would it be advisable to have a 100% range check SB Strategy since I feel villains tend to stab too much when given oportunity at micros.

3B/Folding Blocker hands vs EP/LP Opens.

Having middling hands such as KJs,QJs,QJo with ATs being an exception(plays a bit easier) I guess how do we approach a) UTG Open b) CO Open
I feel like the are clear 3B/Folds thats not the question but the question is lies I feel they completely suck, that 78-T9s works better then the named ones esp vs UTG open, because whenever we hit and we're OOP we're often dominated and dont really know where we stand post range CBet. Range on range I feel at best we're at equal footing, but often behind when called.

and

BTN vs CO

To me everything is a RR here from 22+,54s+ (56s and 98s excluded) and AXs, but I feel this often makes is exploitable to 4B Bluffing from aware villains in SB/BB where we're forced to play a low SPR Pot with marginal holdings or let them print on us, so any advice? Both on frequencies and how should we approach spots in case we do decide to call.

Thank you.

Also for micros 3B/Fold best approach and never calling? PP's and Suited broadways aswell? Thats the approach I take so need general advice.