In this video, I have explained what is w3c WebDriver protocol in Selenium 4.

You will get to know why selenium 4 is not supporting JSON Wire Protocol, it will interact with browsers with W3C protocol.

To know more about w3c-webdriver, please refer:
https://saucelabs.com/blog/webdriver-...
https://sfconservancy.org/news/2018/m...
https://www.w3.org/TR/webdriver/
https://github.com/SeleniumHQ/seleniu...
https://w3c.github.io/webdriver/
   • [Webinar] Selenium 4 with Simon Stewa...  
https://github.com/appium/appium/issu...