This article describes how to upgrade the SQL Server supporting System Center Operations Manager databases to SQL Server 2019. Operations Manager 2019 and later supports SQL 2019 with CU8 or later; ...

Inspiration: https://superuser.com/a/1555144/2119739 and https://blog.codeinside.eu/2019/07/31/sql-server-named-instances-and-the-windows-firewall/ For reference ...