How to open the built-in browser in WeChat mini program

Because the WeChat mini program itself is not recommended to divert traffic to the outside, formal methods are actually prohibited.
1.wx.openUrl can directly open the built-in browser page (available in 2021, but now disabled)
2. Jump to the mini program customer service through the native button, and the customer service will send a link card and enter through the link of the card.
3. Jump to the official account article. View the full text at the bottom of the article to jump to any link.