Microsoft has re-released the PC Health Check app, allowing people to check if their machines meet Windows 11 requirements. It appears as though Microsoft has dropped the requirement to have a 9-inch or larger display though, opening the OS to smaller devices like the ONEXPLAYER and AYA NEO.
https://www.notebookcheck.net/Microsoft-appears-to-drop-the-display-element-of-its-Windows-11-requirements-with-new-PC-Health-Check-app.563104.0.html