Hi Jack660
Web browsers these days are among the most resource hungry software on your PC, so all web browsers now are multi-threaded, with each task put on a separate process, so those processes can be divided among the cores of your processor . . .
Think of it this way, the main Edge program is one process, the audio is another, the video is another, the search another and each tab you have open will also have its own process, just opening Edge will spawn at least 6 processes . . .
This is all very normal for any browser these days!