I agree Qt Creator is really good, and VSCode with the Microsoft C++ extension is probably not quite as good.
However with the Clangd extension it is much much better. Even better than Qt Creator. 100% accurate C++ code intelligence, really really fast error squigglies. Honestly I was kind of surprised it's even possible to get it that good.
It's not quite on the level of Dart (which is basically instant and perfect), but I'd say it's on the same level as Rust at least in terms of responsiveness and reliability.
However with the Clangd extension it is much much better. Even better than Qt Creator. 100% accurate C++ code intelligence, really really fast error squigglies. Honestly I was kind of surprised it's even possible to get it that good.
It's not quite on the level of Dart (which is basically instant and perfect), but I'd say it's on the same level as Rust at least in terms of responsiveness and reliability.