I can't see why you'd pick Java over C#. IMO its basically all the same preferences with slightly more consistent syntax choices. That said, Java is great too. It's underrated considering what a workhorse it is.
Well the ecosystem is different than the language but you can certainly find 3+ of any library you need in Java where .NET usually has a single choice.
I use Jetbrains for both Java and C# and the experience is essentially the same.
Second, the more I worked with C# and visual studio, the more I hated it. It was pretty much the opposite with Javascript, typescript and even Java.