Ok. I get it. So there isn't a resource like the archives of nethys or d20pfsrd where I can fully build a 5e character for one game without going out and giving them money?
Yes and no. 5esrd.com is a great resource with all of the OGC on it, and you can make a full character - you just don't have all of the options, but there's still a decent amount. Feats are not a good example since they are entirely optional in 5e. So, if you like the archetypes* they released for the classes, then you can use that resource and easily make a full PC. (Also, Unearthed Arcana on the WotC site has more options for some classes and those are free, but they are playtest material.) However, if you want more options, then, yeah, you need to give them money for a PHB.
* In my experience, the archetypes are probably the most limiting thing I have found in trying to use OGC for making characters, but that might just be me.