The button does nothing? Make sure you have Metamask installed
It works for the Metamask browser extension, not the mobile app.

Want to add the network manually? Here's the details:

Open Metamask > Settings > Networks > Add Network

Network name: Point Network

Network URL: https://rpc-mainnet-1.point.space

Chain ID: 10687

Currency Symbol: POINT

Block Explorer URL: https://explorer.pointnetwork.io/