Old Reddit loads perfectly fine for me on iOS.

What OS are you on and what is the specific problem you see when you try to load this Old Reddit link from OP?

Your comment made me realize that it was an extension I’m using on my iPhone on iOS 26 that is causing the issue. The extension is StopTheMadness.

I had an option called “Protect page zoom controls” which allows you to zoom on sites that disable zoom, but it breaks this website.