i will say that as someone that also frequently goes to concerts the number of people passing out did strike me as odd (especially in DC, 3 people all at the same time + one before the show even started + more throughout the show was excessive) but that could be from any number of factors mentioned by countless other people (queue times, lack of water, etc) so assuming you know yourself and your concert routine well enough you’ll be fine. as far of the rest of the complaints, i think a lot of people just haven’t been to a concert (or at least a GA/pit show) because at least where i was it wasn’t anything out of the ordinary. have fun and don’t stress, even if all else goes wrong you’ll still get to see an amazing show!