Microsoft retired the ability to create personal pages from SharePoint Start (Preview) in March-April 2025. Existing personal pages remain accessible but have limited management options.
Creation disabled: March-April 2025
Existing pages: Remain accessible but cannot be moved by users
Admin option: Use `Copy-SPOPersonalSitePage` PowerShell cmdlet to move pages
Alternative: Create pages connected to SharePoint sites instead
Personal pages were a preview feature that allowed users to create pages without associating them with a specific site. Microsoft recommends creating pages within SharePoint sites going forward for better manageability and governance.
Sources: M365 Admin · MC1018344