Koreader handles the reading part perfectly on my Boox device. For ftp I use the default Boox functionality which works well for me. Einkbro is good but I ultimately stick to Firefox for the sync between devices. No experience with other launchers as I don't use any other apps and the default one doesn't bother me
freetanga|1 year ago
Some other apps that work (not amazingly but they do work well enough ) are Todoist, readwise reader (hard to use but good to have locally to check excerpts and notes), Syncthing and obsidian (but only to read notes in case to want to check something)
Blinklist (?) audio reader worked too. Outlook too. But most of these apps I just use them to look things up and avoid switching to phone when reading (I leave the phone in my room while at home)