On the topic, what are the differences between those apps?
I am using Word but I would like to change to another one if it has features I prefer.
Word, g.docs, and libre are baseline writing programs.
Notepad, Notepad++, FocusWriter and Evernote are basic text. Not much frills or complicated inputs needed. More aking to digital version of pen and paper.
Grammarly is a tool that you input your text and it does a quick pass on punctuation, grammar and sentence structure. It's a hit or miss as how it does its job. Great if you aren't a native speaker for the most part. But some nuances are lost that can fundamentally change the meaning of a sentence.
Scrivener is a writing program that was made with specifically writing books in mind. Just like Quoll, Manuskript, Ywriter, Writeway Pro, etc. They tend to give extra options to write by scenes, character profiles, outlines, etc. While Scrivener is a paid application the others are free. They tend to compartmentalize the writing process into little sections to help keep the ideas in one place, yet separate. Scrivener, Ywriter and Writeway Pro would be the ones with a learning curve with how much there is to customize. Manuskript and Quoll tend to have the drop-down menus for scene/chapters/profiles/research along with their own spin on things.
Personally, like Quoll myself since it was easy to figure out in about 10 minutes. The typewriter sounds are a bonus.
Never tried Write Monkey, AutoCrit or Nobletalon. Very, very,
quick search of these suggest that Writemonkey is a similar program to the dedicated ones in the previous paragraph. Autocrit is like Notepad with extra features. I actually can't find anything on nobletalon.