Hyperpolymath

I've been hearing a lot about this and all the research about how it is good, like example the stuff that the company cFos with cFosSpeed does, and similar things on Mac. It seems to be pretty serious, and well thought through, and seems to have very little by way of problems, but then why not implemented as a standard? Is it really costly or does it have serious downsides, or incompatibilities? Is this really a serious thing, does it work and how does it work, and if so, why isn't it already included as a standard thing on computers. I'm not sure if it is the same as the thing about Package Coalescing that seems to be an option on the adapter menu for my network cards, or Quality of Service on the router, or the thing that is in the Xbox tab in Windows 10 settings, but it's this something that you could go through on the show? And how does it relate to jitter and ping versus speed priority? Sorry if this is a really obvious thing, I am not really sure how this fits together or if this stuff is related. And not sure how realistically something that seems to be really evidence based isn't a default. Thank you for anyone that can help, and if this can be covered it would be really useful!