Azure AD Cloud Sync is the new Synchronization tool and Microsoft team has published detailed guidance on how to migrate from your existing Azure AD Connect environment to Azure AD Cloud Sync.
Access and download here: Cloud Sync: Migrate from AD Connect
Documentation here: Migrating from Azure AD Connect to Azure AD Connect cloud sync
Access Tutorial here: Migrate to Azure AD Connect cloud sync for an existing synced AD forest
Register for upcoming Event this March 28, 2023. 8:00-9:00 AM, PDT : How to migrate from Azure AD Connect to Azure AD Cloud Sync