https://bugs.winehq.org/show_bug.cgi?id=40098
--- Comment #2 from roman@hargrave.info roman@hargrave.info --- (In reply to Sebastian Lackner from comment #1)
Not major (see bug reporting guidelines).
Missing implementation of WSALookupServiceBegin is already tracked as bug 29231, so this would be a duplicate.
However, as far as I know, Steam is not an affected application. It works fine here even with the stub.
Interesting.
What is your configuration? It would be interesting if this were a configuration issue, and it would be very frustrating too.
I recall this issue becoming present when a parallel installation of Wine-Staging existed on my machine, but there is only one wine installation right now.