There may be several reasons why you use MS SQL in my case because I'm working with integration into C5 accounting software, and here is MS SQL, the database used to control all data.

MS SQL is from Microsoft and requires it to run on a Windows platform so if you are macOS or Linux user you must have a Windows machine to run with MS SQL.

MS SQL really reminds me of MySQL in many ways, of course they are both SQL Server and therefore you can write 90-95% of the SQL code you know from MySQL directly in MS SQL The biggest difference I've experienced is LIMIT called TOP In MS SQL.