IDE and Terminal

Neovim is an program that runs in a terminal. You can use it to edit text files and through plugins it can become a fully fledged IDE. The site you linked actually tells you to install Neovim as a package in Termux.

To be clear: Neovim is not a Terminal Emulator. It is not even an Android App. It runs on Android in Termux (and probably other apps), but not on its own.

Termux is afaik the best Terminal Emulator for Android, it includes a package manager with a lot of Linux CLI utilities (like Neovim) available.

For Java there is an apparently fully Fledged IDE available in F-Droid. For Python I’d suggest installing python in Termux and developing and running python scripts from there.

Torrent

I use Torrent Client. It works, but it hasn’t been updated in 2 years and I don’t know how secure it is. I mostly Torrent on my Linux Desktop PC.

E-Book Reader

I use KOReader which is more optimized for E-Readers, but it has a very clean UI and works great for me. It is also actively developed.

if the hardware is not working with the linux kernel, its bad hardware

gnome not opening the keyboard when i focus an input, has nothing to do with the hardware

idk about op, but if i asked about a good linux tablet, i would mean the hardware not the software

for me a good linux tablet means i can take my favorite linux distro, install it without big hassle and have a good performing computer with all components working afterwards

while good performing can be interpretable