When I was lifting, my favorite lift-day was definitely high rep squat day. Trying to improve my “heavy 20 rep breathing squat” was the most grueling fun i’ve ever had while lifting. Other high volume squat days like 10x10, lighter 5x20’s, and lighter 1x20+'s were great too. Heavy high rep work has seen a resurgence in recent years, but it’s still way too underrated with respect to lifting for athletic performance enhancement. Most people who are into heavy squatting etc, are looking to add slabs of mass to their legs etc, but in my experience, it was the best style of lifting to improve my strength (limit, explosive, endurance, and mental) & work capacity related to vertical jumping & sprinting. Legs felt bionic.
For 1 x 20, using breathing squat style, it’s basically take your 10-12 RM and knock that out, then stand there breathing/recovering until you get to 20. After a good warmup and a slow thorough work up, that can be the entire workout lmao.