I often have to transfer large files in LAN. 802.11ac and 802.11n definitely enough for most of the time. I often have to transfer large files between machines in LAN, with 802.11ac makes you remember that it's wireless, while 802.11be makes you forget.

I have the same setup for a framework main board next to the AP, and it's reliably faster than using their usb-c ethernet extension card.