One aspect of Ethernet I do really like is that when a computer has, physically, no ability to do WiFi (as is the case on many desktop motherboards) you know through what exactly your device is connecting.
If your device has wifi capabilities, you suddenly gained wonderful features: like for example your smart TV using your neighbour's Amazon echo (or whatever the latest evil scheme is these days) to report your viewing habits to advertizers.
I've got WiFi for my "fun" computer: a Mac M1 laptop for the couch. For my serious computer (a high end Linux desktop machine with a gigantic screen) it's ethernet.
If your device has wifi capabilities, you suddenly gained wonderful features: like for example your smart TV using your neighbour's Amazon echo (or whatever the latest evil scheme is these days) to report your viewing habits to advertizers.
I've got WiFi for my "fun" computer: a Mac M1 laptop for the couch. For my serious computer (a high end Linux desktop machine with a gigantic screen) it's ethernet.