Owner of Group DM cannot remove people from DM

I am running into weird behaviour with the server and i am pretty sure that this is weird/unintended server behaviour

Creating a DM, be it group dm or 1:1 dm, returns a channel object.

If i create a 1:1 DM channel, the channel object has 2 recipients: the user who created the channel, and the other user
When creating a group DM however, even when I add 3 people, the user who created the channel never shows up in the recipients of the returned channel. I can't find anything indicating that it should be this way.

Consider these two screenshots:
Here's a group DM which should have 3 People: "integrationtestuser", "integrationtestuser2" and "integrationtestuser3":

And here is a regular 1:1 DM between "integrationtestuser" and "integrationtestuser2":

and the runtime error which occurs, when trying to call the endpoint which removes a recipient from a group DM:

P.S: when looking into dm_channel using the debugger, owner_id is None, both in the regular DM and in the group DM:

Also not sure if this is intended.

Start by tracing group DM creation and the endpoint that removes a recipient, comparing how the returned channel’s recipients are populated with how dm_channel.owner_id is handled. Use the reported runtime error and the two DM cases as reproduction points. Done means the intended owner and recipient behavior is consistent and removing a group-DM recipient no longer fails.