Firefox is now the last major browser that still supports uBlock Origin

Firefox says it will keep supporting uBlock Origin even as Microsoft Edge and other Chromium browsers phase it out under Manifest V3.

www.pcworld.com/article/3212428/firefox-is-now-the-last-major-browser-that-still-supports-ublock-origin.html

I’ve been using Firefox for ages now so I don’t get it : what’s the point of using Chrome or Edge ?