Hello rangers,
We are tracking an on-going issue with Steam that prevents players from finding any servers.
Early finding from the team is pointing to an issue with Steam-Unreal functionality related to the FOnlineAsyncTaskSteamFindServers queue. It appears to be a known issue that will impact other games using the Epic Steam OSS.
We will keep an eye on the issue and will let you know more about it.
Thanks for understanding and sorry for the problem.