I used these for home router + wifi until last week... they were pretty good, low power and low heat / fanless, relatively normal x86 with a BIOS tailored for embedded. I can see they're a bit niche both themselves, and using a niche cpu for the vendor and arm64 wants to eat their lunch. But it was good while it lasted.

I coincidentally replaced mine just before this with 2.5G arm64 based board, also fanless.