I'm ok in Edge (79.0.309.71) and Chrome (79.0.3945.130), but the latest dev build of Edge (81.0.396.0) still doesn't work. When I right-click the web clipper button, it shows a Login to Evernote menu item, but when I click it a pop-up comes up, it says Web Clipper Login Successful (without explicitly asking me to sign in), but the web clipper window still doesn't come up. I've cleared my cache and cookies, but the problem persists. The log is showing an auth cookie error, but in the browser settings I've allowed all cookies, I'm not blocking third-party cookies, and I've turned off all tracking protection. Not sure if this is specifically an issue in this version of the browser, especially since it's a dev build and the official release version works fine for me.
Log.txt