I will try to make this as easy to understand as possible. Sorry for such a short post.
What is a simple way to wipe saved data from the DataStore?
I don't know if their is a function or something to clear Data. However, you can just change the name of the datastore you're accessing. Nothing would exist there, basically a Data wipe. Also, a new place will not contain the same data. Here is an example of what I mean: (Of course, in a script)
game:GetService("DataStoreService"):GetDataStore("GameData") -- Now we want to "wipe" it, so start using a different one! game:GetService("DataStoreService"):GetDataStore("DifferentData") --DifferentData will not contain anything inside because it doesn't exist, so you're making a whole new one!
Comment any questions and accept/upvote if this helped!