The Intel 11600K CPU has vastly superior encode and decode abilities compared to the 5700G and might even make the Quadros obsolete in that vein, even if both of them can handle it via brute force.
OP didn’t say he was hosting a Plex server for all his friends and relatives for all the pirates netflix content he torrents, but maybe that’s a normal workload for him 😂
While I am only starting down this rabbit hole; it is fascinating reading, lets continue this, bro.
You say it has vastly superior encode and decode abilities . I think that is hyperbole, but lets see. Point out on this list I will link below, for VCN 2.0, besides AV1 support, what UHD 750 does that the Cezanne does not. Or of course, which check boxes it checks that are not even on that list, that are of significance. Or what it does vastly better that is common between them.
Software support is another matter all together. And I surmise that will come, for most currently lacking it, considering how popular Ryzen APUs have become the last 2yrs. That user base cannot be ignored for much longer, even by PLEX. Though I read employee responses that state it is a technical issue with the support. And that because of how NVENC dominates their client base, there was little incentive to expend resources on it. We will see as more and more use Ryzen APUs for the builds, if that changes. Seems like APU owners are already being fairly vocal about it on their forums.
https://en.wikipedia.org/wiki/Unified_Video_Decoder#Format_support
And it seems the shady stuff you observed about pirating, something I adamantly oppose, is the most likely scenario where a home users would need support for more than a handful of concurrent users. Obviously there are always outliers, but at that point, why should anyone care, other than that tiny demographic?
I have a lot of reading to do. And once again, I appreciate your time and effort. The anecdote about the old quad cores for instance, is completely outdated compared to modern 12+ thread. Everything about these new Intel and AMD CPUs is much better than say, a Haswell or its refresh.