Selector aggregate stats in the performance tool
The performance tool’s Selector Stats function. Performance tool users can identify which CSS selectors are causing slow performance by using the Selector Stats data to determine which selectors take the longest to recalculate style.
New Features of Microsoft Edge Developer Tools
In Edge, you get some tools that can be used for debugging web pages. These tools are Development tools that allow you to inspect the code, check network requests, improve performance, etc. There are many changes made to the DevTools of Edge in its subsequent version in 2023. From UI changes to added functionality there are many good changes made to some tools.