But this thread starts with the article complaining that those external processes have to be restarted every twenty minutes. Exaggerating, I'm sure. But a few days ago I helped a colleague who was using both IntelliJ and VS Code on his laptop. The whole machine has dragged to a halt, a kind of slowdown I never see on Macs normally. A quick trip to the Activity Monitor showed that VS Code processes had been in a spin loop for days. Somehow they were trashing the performance of the entire machine.
The ironic thing is, I came over to take a look because my colleague had been complaining IntelliJ was slow. Kill off the errant Electron processes and suddenly IntelliJ was fast.
At any rate, startup time isn't the be all and end all for an IDE. I only (re)start my IDE when it needs an upgrade.
Zed opens instantly and can give autocompletion instantly even for C++ projects.