This is based AF,
I mostly play a support and a little bit of DPS, mostly mercy and Kiri, I often swap to ana if the enemy run mauga or hog, or lw if my tank is a little… Overly aggressive shall we say XD
Tbf though, some heroes, like mercy, rely too much on teammates. Thier abilities mostly require another player on your team to even function. So I can definitely understand and sympathise with OP about this subject, because at this point in time at least, players are forced to choose between either having fun or winning a match 