[oblio]

Considering the tools developers use in general (Visual Studio, VS Code, Eclipse, IntelliJ, Netbeans, various DB browsers, etc.), application start up time doesn't seem to be an important concern for the majority.

[Osiris]

My IDE stays open (I keep all the common projects I work on open and just switch between them as needed). I rarely reboot. Startup time is completely irrelevant.

[iainmerrick]

You typically leave an IDE open most of the time, and maybe start it up in the morning at most a few times a week.

For that, a cold launch time of a couple of seconds (VS Code) is fine, tens of seconds (Eclipse, XCode) is annoying.

Opening new files definitely needs to be instantaneous.