What do you do on a laptop that 802.11ac is too slow for? Or do you live on the NRQZ? Gbit ethernet isn't that much faster than 802.11ac, so I'm really having

What do you do on a laptop that 802.11ac is too slow for? Or do you live on the NRQZ? Gbit ethernet isn't that much faster than 802.11ac, so I'm really having a hard time thinking of a realistic use case here. EDIT: wrote this before I realised that the wifi card this laptop ships with is particularly bad.