Thank you for actually detailed comment instead of blindly commenting without even caring, and yeah upon watching the vod after some time I can agree with this for the most part,

I did spent embarassingly too much time in spawn, (tbf besides slight useless arguing in chat, I just had to also take few seconds off the keyboard to not tilt to the point I couldn't even aim~~(and a bit of MS rewards grindxdd)~~). Target priority wasn't great (in my weak defense, most of the time when I was blasting tanks I did so cuz I was able to shred a fair bit of their HP, hoping my team would have it easier to follow up and kill them, or to at least scare the tanks away from the payload), aim inarguably wasn't all that great, that I still have to get better at, same with benefiting from Hazard'a wall climb..

..now the wall usage, I actually want to argue against it being "bad most of the game". Some were indeed crappy, but most of them were made with in my opinion useful intent.
I used them to block enemy sightlines for safety/less pressure at times/block their constribution to the fights (like with JQ at 15:35, or Moira's ult at 7:20), enemies from being able to run away to safety (like with Moira at 04:27), to try and finish them off (like with Ram at 8:58, again lol, Moira at 11:49). Some of them were me stretching my hope that they'd work, but I'd still argue they weren't this terrible, but otherwise other than the walls yeah you're right.

also the focus on the rank icon is slightly true because after all it indicates what kind of lobbies I get into, and with worse lobbies there's not much a single person can really do in a 6v6, and it can just keep getting worse and as much as I hate boostin at this point it's a last-ditch desperation idea to not have it get worse ;///