If time allows (given the philosophical and more general nature).
As an end user I'm more and more confronted with semi-necessary apps that I can't install on my smartphone (as they are only available for the two mobile OS'es the world seems to know about). It used to be only Whatsapp, and I actually owe UT a debt of gratitude for that, but now I also note increased pressure from utility providers (banks, phone, insurance, electricity) to make use of their dedicated apps. The recent state developed Covid-19 tracking apps could be another example.
How do you experience this? Have you already persuaded some business app developers to open up to UT? And are there reasons to hope for a more UT friendly app future (~ increasing mobile Linux user base, converging app development technologies,...)?