Some say it is a personal preference and it's not a big deal. I'd say it is not a personal preference anymore to omit curly braces for single statement blocks ... here is why
c#
How I Do dotnet core App Setup Elegantly
Program.cs is usually one of the files that get quite messy after a while in every .NET project. Here's a structure I found over years that helps me to keep app startup code readable and clean.
Arman Notes { Programmer By Day } 