Sure, we start against millions of apps in other ecosystem but on average people don't use more than 20 apps often and I for one dislike that every website out there has created their own iOS/Android app when I can simply use one app for all them - browser.
Also never underestimate the power of GNU/Linux community - it has by far most of hackers on it and it is doing their thing for decades already without slowing down at any single point.
Also, we will try to help and support any community that will work on getting their OS/app on Librem 5. It would be phone produced by Purism and supported by us, but it would truly be one from people for people. :)