Here's what I found. This is built more like a server.

https://www.amazon.com/PowerEdge-Server-2-20GHz-Cores-Renewed/dp/B07RJT19GS

The Framework desktop you linked to is built more like a gaming desktop if someone were allergic to graphics cards. I guess it's calling itself aimax. Facepalm. I guess that's what the absurd integrated graphics core count are for. That's not how you AI if that's what you wanted it for.

But since you mentioned a NAS a lot of these NAS's are built like web servers themselves, just smaller scale. Sense a lot of them run Linux you could also use the NAS itself as a web server. Because you are on residential internet it's up in the air which would be the bottleneck even with that.

I guess it depends on what software is running. If you ran a really poorly configured nginx or apache + a poorly configured php I guess this little guy could have all his thread pool filled before the ethernet is saturated. But if everything is running efficiently that little guy should be able to push out more data than your ethernet's uplink could handle.

More servers welcome in the comments