Move the mic before you install a plugin
Put the mic near your mouth, off to the side to cut plosives, and away from the keyboard if you can. Lower the gain until normal speech does not hit the red. A noisy room with the gain cranked will sound like a noisy room with a filter on top.
Then use one noise tool, not three. OBS has suppression. NVIDIA and other GPU tools have their own. Stacking them makes you sound underwater. Add a gate only after the noise floor is already low, or it will chop your words.