Webpage reloading when opening developer tools in MAC Chrome

I am noticing a new feature on websites, that whenever I open developer tools on a loaded webpage, the webpage also starts reloading. I am listing down the webpages, where I saw this behaviour

1. https://medium.com/
   
2. https://blog.logrocket.com/writing-readable-code-with-typescript-enums-a84864f340e9/
   
3. https://www.typescriptlang.org/play/
   
4. https://github.com/airbnb/javascript/#naming--uppercase
   
5. https://www.freecodecamp.org/news/when-to-capitalize-your-javascript-constants-4fabc0a4a4c4/
   
6. office365 outlook mail

List can be elongated,

1. I thought it may be due to the settings on networks panel, which is a checkbox to disable cache but I tried toggling it, still page would reload.
2. I also tried resetting chrome developer tools settings and refreshing the browser, but still getting same behaviour

Anyone has any idea about possible cause, or is there something new trend which started in web industry?