Hi there! My name is David. It’s a pleasure to help you today.
Regarding your question, yes, you can uninstall one of the Windows SDK versions without any problem. This will depend more on the version of Windows 11 you plan to develop for. For example, version 10.1.22621.3233 works for 22H2/23H2, and version 10.1.22000.832 is suitable for 21H2.
If you're working on projects that rely on specific SDK versions or have developed for different Windows releases, I would recommend keeping both.
Let me know if the shared information has been helpful. Regards.