Making a level subfloor?

[Eric_theferret]

Hello!

So all my holes are patched, and I’m ready to start my subfloor. With my patches and silicone, my floor is pretty uneven. Do you guys put your furring strips/wood down directly on top of the metal/patches? Or should I use something to level it out first? For reference, I am planning on a floating floor with 2x4s and foam board.

Thanks!