I sell my MSI Z790 Gaming PRO WiFi bought brand new last year. It was used for 7 months, never been used for overclocking (other than the RAM through XMP pre-registered profiles), so... As good as new, or close to it.
It served me well during these 7 months and the only reason I decided to sell it is because I upgraded for a motherboard with better connectivity. As the name implies, it's very good for gaming and supports the latests standards in use (PCIe Gen 4 all over the board).
The BIOS is updated to its latest version (7D93v14) and will support all Intel processor for the LGA1700 socket released so far.
It comes in its original packaging alongside all the stickers, documentation and accessories that came with it.
As a bonus, you'll get a free ThermalRight contact frame for the LGA1700 socket, allowing to enhance the heat dissipation of your cooling system (those Intel CPUs are infamously known for the heat they generate, so it might be quite useful if you're concerned about thermal throttling).