Can you build muscle while training in a deficit?

People have rules for how you should train to reach your goals.

You "can't " do this without that,etc.

Truth of the matter is everyone is different.

So the results are different.

You "can" build muscle while in a deficit.

For some you may have to intake more protein.

You might need more cardio.

You may need to change your nutrition.

Maybe your training...

But for sure,you "CAN" build more muscle while training in a deficit...