I can’t see any advantage.

Doesn't quit working every time somebody microwaves a burrito.

OK. I'm going to ELI5 this bit. Not being mean, sarcastic, or trying to talk down. I don't know you're knowledge level, so I apologize.

Imagine 2 different 1" pipes. One gets its dedicated supply running to your house, and the other gets divided among all the houses in a cul-de-sac.

Your house will have the best water pressure, unaffected by any neighbors, so your showers, laundry, etc, all runs perfectly fine.

Your neighbors, however, may or may not have adequate pressure, and depending on your many "devices" are relying on water, some get barely any flow at all. Devices that are furthest away get nothing.

So, theoretically, you get a pipe of water as do your neighbors, but the best time for your neighbors to use it is when there's fewest utilizing. But you can't really gauge when that is, so it's often unreliable.

The more technical side is, wireless has the potential to go beyond 1Gbps which is great! However, many current WiFi 6, 6E, and 7 routers/APs still only utilize a 1Gb Ethernet port, so you'll have a bottleneck regardless. Signal strength depends on obstructions, which could be walls, furniture, pipes, electrical, insulation, etc. 2 devices close by don't get the same signal, SO many variables come into play that are resolved by dedicated connections like Ethernet. The more devices that share your 2.4GHz, 5GHz, & 6GHz the more shared the signal gets. A 2.4GHz has longer range but slower speeds and its often saturated by IOT devices. 5GHz & 6GHz devices benefit from better throughput, but suffer signal degradation easier.

I hope that helps. Happy to answer any other questions.