It's the principle.
I get that you think it's not a major inconvenience, but if I now throw yet another (pointless) popup for you each time you install an app, are you OK with it?
When I install something on my PC (Linux), I never get such a prompt. If any Linux distribution started giving a prompt on each install, power users will stop using it.
> if I now throw yet another (pointless) popup for you each time you install an app, are you OK with it?
It would be an extremely minor issue, definitely not rise to the level of having multiple phones being easier. It’d be a few button presses per year.
If I installed apps on linux at the frequency I installed apps on my phone, which is a few apps per year, I wouldn't care at all. That being said, I get fewer interruptions installing apps on my phone than I do on most linux CLIs, since on my phone I just press install and it installs, no question. The real problem is first-launch pop-ups/notifications/settings, and linux apps can have as many first launch popups as my phone does.