GZCLP is the official name for Cody LeFever’s Linear Progression program. GZCL is Cody's screen name on Reddit plus LP which stands for linear progression. GZCL is split into three different Tiers.
 
I highly recommend this program for intermediate lifters who are seeking to pursue a more 'powerbuilding' style program for the first time. The following are the three tiers for GZCL Method programs:
 
Tier 1 - Main Movements: Competition lifts at 85-100% of Goal weight for 5x3/6x2 and 10x1 (bench press, squat, deadlift)
Tier 2 - Primary Exercises: Variations on the competition lifts and other compound exercises at 65-85% of 1RM goal for 3x10/3x8/3x6 (front squat, close grip bench press, overhead press, deficit deadlift)
Tier 3 - Secondary Accessories: Hypertrophy isolation-based exercises focusing on select muscle groups to maintain and improve joint heath, build muscle, and develop endurance. This is less than 65% of goal weight for 3x15+ or 4x12+.
 
GZCLP is classed as a beginner’s program, however, I believe this program can be used for all levels. More advanced lifters can merely just expand upon the basic foundation of the program to better suit the needs of an advanced lifter.
 
Yes, it is linear progression which is a common trait of a novice program, however, this program includes a lot of variation, works off your five-rep max, and is split into two training blocks. I would say a Novice Lifter would be better suited to my Novice recommended programs. 
 
I found this program on this thread on Reddit and it is by far the best GZCLP program variation I have come across online for free. If you want to find out more about GZCLP this is the Reddit community, this link is to Cody's Instagram, and this is for Cody's YouTube.