That is like saying that one rather make fire with sticks and stones than with a lighter, because otherwise one would be lost when going out camping.
IDEs are an invention from the late 1970's, early 1980's.
Very much true. On the other hand web based review interfaces seem to be stuck in the '60, when they could be so much better if they properly integrated with the compiler.
You can rely on IDE features when GitHub's web view has them
I think IDEs are a moving target. Do you consider syntax highlighting to make something an IDE? Macro expansion? Autocomplete? intellisense-like based on full text search? based on a parser? based on the compiler? Is Kate an editor or an IDE? It has LSP support.
Having syntax highlighting makes me slightly faster, but I want to still be able to understand things, when looking at a diff or working over SSH and using cat.