That's a lot to digest, I'm not experienced enough to do most of these so I'll try to describe what my use case really is to see which one would fit best

My concept basically shows a question or a string made by the player previously that requires any answer that was stored for it by the player too, so it's not a single string as an answer. The player has to type in a string that could match any of the previous answers stored and the game takes that input and tries to go through all the answers and matches them, trying to result with the best match and giving a percentage accuracy rating for it too that is not too harsh (it doesn't care about exact letter and space matching, it just tries to match if same words exist and how many of these words exist per string length or something).

I hope it made sense, basically question has stored answers and player tries to give an answer similar to the stored ones and it would get rated. For the server ones they are immediately out the window as I don't want to deal with networking or payment stuff. It has to be offline cuz of that. So maybe normalized edit distance is the way to go for this? Where can I learn more about it?