"There's a problem with your game's setup" patch 1.109

Ex3o  Your wifi should work without leaving any particular service enabled because the Windows wifi driver should be fine.  But if wifi doesn't work, look for something with a name like "Qualcomm Atheros Wireless Network Adapter," which is the name of the installed wifi driver.

I haven't heard anything about Steam not working when its services are disabled, which could mean that they're safe to disable or that everyone who's tested has seen "leave the EABackgroundService enabled" and applied that concept to Steam.  Here again, start with the services disabled, and if Steam won't open or load properly, reenable them and restart your computer.