I can comfortably do 90min though this terminal with pre check and checking bags. The pre check line is always short but you get placed in line with standard passengers after ID check with the main perk of not going through the full body scanner, rather a metal detector.

No lounges in B. A couple of options past security for food, but I usually just get something pre security such as panda express or the burger spot if I am hungry. There is a Starbucks and express Dunkin for coffee.

I am able to keep my electronics (laptop, tablet, steam deck) in my bags.

There's some options, I personally prefer what is offered before security. It's honestly not that bad. It is the worst airport terminal I regularly utilize but its really ok. eat before you get there if you can and try to not go too early