It's the [null-forgiving operator](https://learn.microsoft.com/dotnet/csharp/language-reference/operators/null-forgiving), telling the compiler we are sure that `s.Title` is not `null` even if it might think it is. There is no effect on the LINQ query itself.
– Jeroen MostertMay 18 '22 at 20:42
Oh well, I know that is the case when passing over arguments to a method, but I never saw this working with a LINQ query before. Thanks!
– ZagrosMay 18 '22 at 20:44