Why is it so incredibly difficult to log in to xfinity?

Let me start by saying I'm surprised I could log into the community forums at all. However, logging in to view anything but especially connect.xfinity.com/appsuite is impossible. I've tried every solution on the internet with every browser available on Windows 11 with no success. I've removed firewall settings, browser settings, plugins, adblockers, and literally everything affecting my connection to the internet. All I get in return is unreachable, server unavailable, timeouts, redirects into the cloud, and various other outcomes which are completely unacceptable for this being 2025 and the amount anyone pays. Why is there no app for Windows 11? Why is this like trying to access the boards in 1980 with a dial-up modem? It can't be this difficult to operate webmail in 2025, a 4 year old with a Minecraft account can do it. Please offer insightful solutions that are actual remedies and not the same dribble about browsers, VPNs, cookies, cache, and the like. Your assistance appreciated.