Why is not onemesh available in ap mode? it doesn't make any sense to me. Roaming is solved within wifi, not routing. Thank You.

Hi, i have a TP-Link Archer AX5400 (AX73) router and a 10Gbps internet connection. Is there any way to use more than 1Gbps? I wanted to buy a USB network card with a speed of 5Gbps, but I assume that