You're phrasing this as if using an IDE was always an advantage, but unfortunately this isn't always the case:

-IDEs are more resources hungry, I remember when trying to use CLion on a big C++ codebase, until increasing the garbage collector maximum heap size all I had was a blank screen, after it was just unusably slow...

-even when IDE work, LSP for C++ codebase aren't very good, for example the caller hierarchy is usually very incomplete..

-I remember having been asked quite a few times, about "how do I use the IDE's integrated debugger to debug a target which was available only through ssh and then you had to telnet from one board to another?" My answer? Use gdb.

That said, I use VSCode now because its multiple tab handling is very nice, but I use it mostly as a glorified text editor (not by choice but because C++ is really IDE's unfriendly).