>I guess it's because Broadcom doesn't have their WiFI 6 chipset
They did, as per iPhone. But Broadcom didn't have a WiFi 6 3x3 implementation then, and I guess Apple doesn't want to compromise to WiFi 6 2x2 ( 80Mhz ) implementation on 16" Macbook which would actually be slower ( On paper ) than its previous 3x3 WiFi 5 / 802.11ac.
All these is on the assumption Apple wants to continue with 3x3 WiFi. They could wait for WiFi 6E and call it a day. A 160Mhz on WiFi 6E gives you 2400Mbps on paper.
That was Broadcom as well.
>I guess it's because Broadcom doesn't have their WiFI 6 chipset
They did, as per iPhone. But Broadcom didn't have a WiFi 6 3x3 implementation then, and I guess Apple doesn't want to compromise to WiFi 6 2x2 ( 80Mhz ) implementation on 16" Macbook which would actually be slower ( On paper ) than its previous 3x3 WiFi 5 / 802.11ac.
All these is on the assumption Apple wants to continue with 3x3 WiFi. They could wait for WiFi 6E and call it a day. A 160Mhz on WiFi 6E gives you 2400Mbps on paper.