As someone who is very experienced primarily as a C# dev, I wouldn’t say Java is “nearly 1:1”. At a syntax level they’re practically the same and they both use

As someone who is very experienced primarily as a C# dev, I wouldn’t say Java is “nearly 1:1”. At a syntax level they’re practically the same and they both use GC, but in terms of ecosystem they’re very different. It might not seem like it to people who are just starting out at programming, but syntax is probably the easiest part of it. Sure, I would probably be productive in Java if I had to start using it fully tomorrow, but it would take me months or years to get that same nuanced knowledge of its ecosystem to be as effective with it as I am with C#.