Am left-handed and play OKLÖ as WASD. My L key doesn't work in Minecraft, I can't do anything with it, and other functions don't work either.
That has to do with the fact that the L is already occupied
No it is not.
What is your key assignment?
If L is double occupied (is marked in red) then it is clear why it can't work, otherwise the L key also returns an L outside of the game?
L is the standard key for achievements. I don't think you can change that. Otherwise try another key and do a macro that L is the other key
Why don't you use WASD? I'm also left-handed and can I get on really well with it?
Bro, I can't get used to something like that, it takes a few months
I didn't have double occupancy but thank you.