Yes, it let you connect devices to your smart home interface, that don't support ZigBee or Zwave, without having to download a 3rd party app. The new protocol Threads also uses Matter for connection.

Not really but I do believe it’s the future. For any future devices, Matter/Thread is my preference.

But of course using HA means you don’t have to limit yourself. Both my Zigbee and zwave meshes are solid.

I did have a conversation with a friend a few months back who asked what I recommended. It’s tough because

• Matter/Thread is rolling out very slowly so you can’t really count on it yet.
• always avoid WiFi with vendor portals
• is it worth it for a newcomer to invest in Zigbee or zwave?