> I am not sure if I would call trying all combinations "picking s lock"
Lockpicking is defined as opening a lock with an instrument other than the appropriate key. It is not defined by how many attempts it takes. Many of the most common lockpicking methods are nothing more than brute force, which are sometimes incredibly effective. They're also sometimes the opposite of effective, meaning they may take many thousands of attempts before stumbling upon success. That doesn't disqualify them from the definition of lockpicking.
> You could also bring all 46k key variations and try them out [...] but that would not make the lock pickable if I was to talk about it.
The entire point of lockpicking is that you don't need to make every key combination, and instead only need a small set of tools or a single device. The personal decision to make every key instead of using another method, doesn't mean the lock isn't pickable, it just means you spent a lot of time making keys. You could also make all of the keys for a basic $1 padlock, but that padlock is still pickable with a paperclip. It didn't become unpickable by creating the keys.
> I have no clue about locks, but there's a difference between brute forcing a password and decrypting it from the hash.
Yes, the difference is that one will definitely take longer than the other, but you don't actually know which until you've successfully completed the task. They're both still password cracking methods with the same end result. One doesn't magically stop being a cracking method just because it takes longer.