https://bugs.winehq.org/show_bug.cgi?id=43464
--- Comment #22 from Brendan McGrath brendan@redmandi.com --- (In reply to jens from comment #21)
Thanks a lot for the work here! Will this solution work with SteamPlay/Proton once Proton contains this fix?
Yes it will. I've rebuilt Proton 3.16 with this patch (and changed the 'proton' python script to launch with 'wine64') and the MachineGuid workaround mentioned above is no longer required.