ASP NET CORE EF How to connect MySQL?

Question

ASP.NET

Hello. I don’t know what to do anymore, I don’t change how the server still doesn’t find this connection string.
My application config:

"ConnectionStrings": {
    "MainDB": "Server=sbm15yyj.beget.tech;Database=sbm15yyj_dicedev;User Id=sbm15yyj_dicedev;Password={pass};"
  }

The data was taken from Beget hosting, access from all addresses seems to have been opened.
Next, I register in DI:

var connectionString = configuration.GetConnectionString("MainDB");
            services.AddDbContext<MainContext>(op => op.UseSqlServer(connectionString));

When accessing the table, I expect to receive an Exception stating that there is no table (because I have not done the first migration yet). And I get an error that the server cannot find.

Win32Exception: Не найден сетевой путь
SqlException: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)