Hm… first, some comforting thoughts:
- maybe it’s only three seconds when inside an app, but less on the home screen. Swipe up + tap might be faster then.
- It’s free software, so there will be a way to change that value.
- This is a very early draft. They will notice that 3 seconds suck
But, admittedly I don’t like it either, now that you point me to it. I don’t really use that feature very frequently, but on my S3 it takes about one second.
Now, all Galaxy phones before the S8 had a hardware home button (long-press for task list) plus two “soft touch” buttons next to the home button. I don’t really need those soft touch buttons, but I think the home button is really useful. But somehow the design seems to imply the absence of a home button.
That smells like function follows design.
Even on Android, those overlay buttons at the bottom of the screen don’t always work as flawlessly as they should. I say “even”, because sooner or later all android apps must use new API and are therefore, in theory, aware of those overlay buttons.
Could be that all non-default apps would have to be adapted for the Librem 5. Hmm… except you give non-aware apps a different screen size so they cannot cover the button area.
But still.
I 
home buttons 