Most users download ISOs via Microsoft's public website. However, when you see MSDN, it refers to the Microsoft Developer Network (Now part of Visual Studio Subscriptions). These ISOs are bit-for-bit identical to the final public release, but they are often available weeks or months earlier than the general public. They are considered the "gold bit" — the exact image Microsoft signs off on for manufacturers.
When 24H2 is publicly released, the official Windows 11 Download page will have it. For now, it shows 23H2. Download Windows 11 Full 24H2 ISO MSDN
For users without a paid subscription, Microsoft occasionally provides direct links via their software-download.microsoft.com servers. These are often static links that can be accessed by modifying the user agent string in a web browser to simulate a non-Windows environment (e.g., Android or iOS), bypassing the redirect to the Media Creation Tool. Most users download ISOs via Microsoft's public website
For users without an MSDN subscription, Microsoft provides an official tool that downloads the retail ISO (identical to the MSDN consumer variant). When 24H2 is publicly released, the official Windows