Your Mac Can Auto-Join an iPhone Hotspot in macOS Tahoe by Juli Clover

With Auto-Join Hotspot turned on, when your Mac doesn’t have Wi-Fi available and is near an ‌iPhone‌ or iPad providing a Personal Hotspot, it will automatically attempt to join it.

This is a good feature till we get the 5G modem in the Mac. Will I buy it if it’s not standard though? IDK.