Well which board do you select then? ESP32 boardfiles do not come with the Arduino application per default.
Sure, to you and me this may seem trivial, you paste the URL into the prefs, but there are people who will get stumped by this and with an Arduino there is one less step you can forget, not know about or do wrong.
As someone who teaches those things at an University level I can assure you that does make a difference for at least 50% of my students if I let them try to do this unguided.
I don't quite remember, but I don't think I installed anything extra for ESP32.
But PlatformIo with VSCode has it and was extremely easy to setup.