It's good that you can find games. But the game now urgently needs the possibility to set to "solo" and "friends only". It really is no fun if somebody with more than double your power level suddenly drops into your game, rushes ahead and clears all the dungeon.
Their intentions may be good, but the result is that they take all the fun out of the game.
It does this. Check the party settings.
devtrackers.gg