I don't see the Plus as actually having WiFi, but the Edge (ac).
All AM4 motherboards have gigabit Ethernet at least.
There are also ac PCIe cards which are a bit cheaper than ax, no need to use USB. But it could make more sense to buy a motherboard that already has WiFi.
My monitor is an HDMI 2.0 4K HDR TV. You can do 4:4:4 8-bit, but only up to 4:2:2 10-bit.
Years ago Panasonic sold TVs with DisplayPort 1.2, the latter being already capable of 4:4:4 10-bit 4K@60Hz.