Would u still build muscle reseting your lifts?

This might sound dumb but currently im following Fierce 5 routine its a great program. But lately ive just coming of a cut and its time for me to lean bulk. To be honest i will fail my lifts soon during my bulk most likely bench press. So the routine suggest to reduce 15% of the weight which is a reset. Would i still be able to cause the muscle to grow because instead of adding new stimulus i decrease the intensity. I dont want to gain a ton of fat on the reset weeks

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