I totally agree with you on the keyboard… Everything is on the Playstore… But don’t worry the /e/ team is working hard to release a dedicated app store for /e/. There is a post about it here : Applications in /e/ "app store"
You can check if the apps you plan to use will be available. Everything is changing and i hope /e/ will become a standard. It’s not fully functionnal and UI friendly but they are working hard and I believe in this OS.
I don’t use it as my main os but i’m playing with it a little to prepare my switch when /e/ will become better !