I've hired Code Louisville [1] graduates across multiple roles now. This is a totally free program in Louisville, KY and does a great job of getting people setup for a new career. CL grads are all over the Louisville area doing amazing work.
Of course, all these programs are what you make of them. The best graduates are people that were really invested in learning and took advantage of the curriculum and mentors. For those that put in the work, they come out punching way above their years of experience.
You can use the more barebones Worker Sites and retain file extensions. Pages has nicer UX (automatic PR preview sites!) but the old school Worker Sites setup is dead simple and does exactly what you want - it's just a template setup to load assets from KV storage.
Consumer Reports and JD Power both have annual reliability /quality rankings. There is fair criticism of the two orgs and their methodology, but it seems to be the only industry wide data readily available.
Would 100% suggest going the basic OAuth route with FB, and not relying on their SDKs whenever possible. Been bit by Friday-afternoon-PST deployments that wreak havoc until work starts Monday too many times :/
It's not exactly what you want, but just yesterday I made AccountsJS work with Facebook OAuth.[1]
I was glad today when watching this newsline, to have avoided the facebook SDK.
I think OAuth is usually better because every major provider has some version of it and so you basically can implement them all the same or at least in a really similar fashion.
Of course, all these programs are what you make of them. The best graduates are people that were really invested in learning and took advantage of the curriculum and mentors. For those that put in the work, they come out punching way above their years of experience.
1: https://www.codelouisville.org/