Always Full Exp is a mod that provides you with more experience points when you play The Witcher 3: Wild Hunt. It is an add-on for the game, and you will need to download it from the Google Play Store to use it.

If you do not know what the mod does, then please read the explanation below:

When you play the game, you are able to receive a certain number of experience points for each quest. For each completed quest stage, you will receive the exact amount of experience points that you have earned. However, if you are on a different quest stage, you will receive less experience points.

So, what does this mean?

It means that if you complete a quest stage, you will get the exact amount of experience points that you have earned.

The good thing is that you can use the Always Full Exp add-on to receive more experience points for each quest stage, and you will not need to change anything.