Chrome has blocked Flash content on the site for a long time and wants everyone to use HTML5. The browser blocks Flash content in the background and requires the user to install the plugin and manually enable the plugin when it needs to access the content. Chrome76 beta blocks Flash by default, but it gives users a "first ask" option. Another feature of the new beta is that it will prevent websites from detecting if the user is in anonymous mode.
Some people use anonymous mode to view the content of the website's paid zone. However, due to an indicator in the code, the site can detect this and prevent users from viewing the articles. With Chrome76, this indicator no longer tells the site whether the user is anonymous. This is done by changing the way the browser uses the file system API. There is also a new full system installation button that allows users to install progressive web applications. This button can be used in the Omni Frame/Address field. This mainly applies to the mobile version of Chrome.
In addition, on desktop devices, Chrome 76 Beta allows sites to automatically enable Dark Mode. For example, if the user has dark mode enabled on the browser, the site will adapt to the dark mode and provide similar UI elements.