Is the ASUS Pro WS Z890 good for gaming?

It works fine for gaming, but it is tuned for workstation stability rather than overclocking or RGB. Gamers wanting more tuning options usually look at ROG boards instead.

No. Networking is a 2.5 Gb Ethernet port, so plan on a wired connection or add a Wi-Fi card in a PCIe slot.

Which CPUs fit this board?

It uses the LGA1851 socket and Intel Z890 chipset, so it takes Intel Core Ultra desktop processors. Older LGA1700 chips will not fit.

How much memory can I install?

It has four DDR5 DIMM slots, so you can run large memory kits for virtual machines, rendering or heavy multitasking. Check ASUS's memory QVL for validated kits.

How many drives can I connect?

There are multiple M.2 slots plus SATA ports for 2.5-inch and 3.5-inch drives. There is no U.2 connector, so enterprise U.2 drives need an adapter.

Is it worth it over a consumer Z890 board?

If you need long-term reliability, 2.5 Gb Ethernet and lots of storage, yes. If you mainly game and want Wi-Fi and RGB, a consumer board is a better fit.