Larian Studios Forums Baldur's Gate III Baldur's Gate III - Multiplayer Discussion Please allow removing multiplayer avatars from party

While I don't necessarily outright think the customs should be stuck in the party as they are, I will say this:

Multiplayer goes of the game are supposed to be just that. Multiplayer saves. Co op runs. Entire runs, not single sessions on a save otherwise played without them.
You shouldn't be joining peoples in progress saves, nor having them join yours, unless the intent is to convert it to a co op save you no longer play alone, with the story of that character joining the group late.

You're intended to have a seperate co op save that is specifically for the group of players. Only played when the entire group of players is present.
THAT is why Larian didn't bother to give custom characters a place to be in camp. Why they didn't bother to make them removable from the party.
For the exact same reason the host player's character is a permanent party member. They aren't a companion character, they're a pc. Whether that player is connected or not.
By having that 2nd player, you aren't inviting a friend to join you in your story. The 2/3/4 of you are creating "our" story and it's no longer meant to be experienced without them.
As soon as one of you logs out of the run, all of you should. Possibly to go play your solo runs.