The group finder is horrible, if it was up to me we’d still have realm communities (not mega realms like Classic servers), and at max battlegroups with limited amount of servers in them, not just one big battlegroup like now.
We’d have guild rivalries on every realm, to make it more emotionally engaging .
And we’d still have the Elo rating system instead of this garbage, cuz this garbage makes wintrading possible where two teams can face each other and win/lose in a way so both end up going up in rating from only facing each other (not possible in Elo).
There you have some reading to do, to see what’s truly wrong and what a solo queue would require.