Type of device, version/model. Multiple: Google Pixel 7a, Windows 11 Pc.
OS version. Android 16, Windows 11 Home OS 26100.6584
Browser Versions. Google Chrome, Microsoft Edge, Mozilla Firefox, OperaGX.
Exact connection types. Both 5ghz Wi-Fi and cellular connection
What exactly have you tried...
I'm getting the same issue too using Chrome on mobile - it works when I login using a guest account but when I use my actual account it doesn't let me login at all.