Skyrim had it. TESO didn't. So what is the plan Bethesda? Nothing on Steam or Amazon. Don't even know if it runs on W10.

It's most likely going to have it as Fallout New Vegas, Fallout 3, and Skyrim all had it. ESO does have it it's just a real pain (edit: It didn't have native support i don't think but could be done) to set up unless it's become easier since the console versions launched (I haven't played the PC version in a while).

FO3, FONV, and Skyrim were all supported out of the box. Oblivion (I think) is what is considered partially supported--but I can still use my controller with all default functions. I play them all on PC with my 360 controller with no configuration required. ESO was a Zenimax product, so not supported out the box. FO4 will be supported if the past is any indication.