AMD unveils Ryzen Pro 8000-series processors

Am I missing something? These look just like the APUs with the addition of "management" and "security" features and without the iGPU. Is that right?

They also support ECC UDIMMs with ECC enabled, which has been the "PRO" series APU killer feature on AM4 for me. The non-"PRO" APUs will run fine with ECC UDIMMs, but cannot make use of the extra parity information (maybe for reasons of market segmentation - I don't know if anyone outside of AMD knows). This is probably less of a concern with DDR5 platforms and their "on-DIE ECC" (which you cannot monitor for Correctable Errors at least, afaik), but it's still gonna matter for me.

Yes. And it actually does have an iGPU, depending on which model.

In case you don't need an integrated GPU (that's somewhat powerful/potent), you can go with any other Ryzen AM5 CPU to receive proper ECC-enabled ECC UDIMM support, afaik :)

Since in AM5 all CPUs have a basic iGPU, for a home server all the normal CPUs already work fine. The advantage of the APUs is they're on a monolithic die so should have quite a bit lower idle power usage which is important if you have a NAS or other homelab server running 24/7.