On Windows 10, 11 and Linux. I can’t never link my account in Local. I have tried logging in from firefox, chrome, edge and brave. And several times with a freshly formatted pc and with different versions of LocalWP.
The problem is the default browser. I use Firefox and I had tried opening the links in other browsers, but it doesn’t work if you don’t set that browser as default in Preferences/Apperance & Behavior/Browser.