For the past 10 days, I haven't been able to log in to icloud.com from my Opera desktop browser. The site displays a warning saying “identity could not be verified.” However, when I try in Opera's “private mode” or another browser, there is no problem.
I uninstalled and reinstalled the Opera browser, deleted all extensions and cookies, but nothing changed. I'm using the latest version of Opera (v122.0.5643.142) on Windows 11.