Archive Group DMs (i.e. closing group chats without leaving/deleting them)

I see that there are multiple suggestions of this from 2+ years back and I'd like to bring attention to this again:

We would like the option to archive group chats in DMs, like we can archive one-on-one DMs. 

It would make it a lot easier to clean out ones DMs, without risking loosing important information that might be contained in a group DM!