I'm sure performance can be comparable (in terms of requests / second) with enough tweaking and sane design choices, but Java has much longer startup times (especially if you use a framework like Spring) and much higher memory usage, so those are things to keep in mind.

Go is / feels a lot more minimalistic, much less drama and more direct code. Less opportunities to be clever.

Java makes you think about its GC. "What i must do to prevent GC wake up". Always re-use allocated objects and so on. Or you turn off GC. So, you got C++. But with C++ you write smaller code (considering C++11...C++20 standards) compared to Java, so why you need "bloated C++-like language (Java is) if you can use C++".