Recently, I have noticed two major issues with unranked game servers: first, a lot of games have been hosted by people who are seemingly absent. I believe this is due to a bug in the Steam/Microsoft servers, where old, inactive games remain active, and people join them, thinking the host is away. Secondly, only some people can create new games that are visible to everyone. I can join some new games, so I know others are able to create them, however, when I try to create a game, no one ever joins. This has been happening for the past few days, in contrast to earlier when I had no problems hosting games.
These bugs are incredibly frustrating and I hope someone can look into this and contact the game/Steam developers.