Hi anonymous user,
SQL Server 2019 is not yet officially supported on Windows 11, because Windows 11 has not been officially released yet.
This however doesn't necessarily mean that it won't work, but it has not been tested/verified by Microsoft so any issue may occur.
SQL Server 2019: Hardware and software requirements - Operating system support
https://learn.microsoft.com/en-us/sql/sql-server/install/hardware-and-software-requirements-for-installing-sql-server-ver15?view=sql-server-ver15#operating-system-support
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Best regards,
Leon