Not just C++. I used to use it for Java development and had the same experiences as the GP too.
I’m sure it’s really good these days. But I’ve moved on now and my current workflow works for me, so I don’t see the point in changing it until I run into issues again.
Java never got that slow, but it used to tax the system a lot in the earlier days, yes.
I developed Java with Eclipse, but the project I did was not that big when Eclipse was not its prime, and it was in its prime when I was experienced enough to be able to "floor it" in terms of features and project complexity.
Now it's just a blip on the memory usage graph when working with big projects, and way way more efficient than the Electron apps which supposed to do 20% of what Eclipse can do.
I’m sure it’s really good these days. But I’ve moved on now and my current workflow works for me, so I don’t see the point in changing it until I run into issues again.