I find Android not having almost any option for various apps. I just want a touchscreen keyboard friendly text editor which saves txt files in my phone's home directory, for example. The only thing that really exists is emacs or using Termux, and using a modal text editor on a mobile keyboard is a massive pain.
Maybe it's because I use my phone like a computer, but I do not like using single purpose, clunky apps that obfuscate the filesystem. Mobile Linux has so many different apps that Android has no equivalent for. Not denying there's still much work to do for mobile Linux.
I believe the Linux infrastructure for mobile devices needs priority. I had difficulty getting a working images from various operating systems to work on my PinePhone. I need to eventually get Gentoo crossdev setup so I can compile packages for the PinePhone. Curious how well existing Android devices with Linux support fare currently.