This is the way it’s most commonly used.
There’s no such thing as a “real” pyramid method, and you will not find an accurate description of it online.
It is a product of meatheads in the gym simply working up to a top set or 2 with increasing weights and decreasing reps, which eventually became common practice. You can look at the training videos of Dorian Yates, Ronnie Coleman, Kevin Levrone etc to get an idea of how it’s done.
If I have a good spotter, as in someone who can spot you while knowing how much to assist you for a couple of reps once you reach failure, I will do one top set. If not, I will do 2 top sets @RPE 9-10.
And while it’s called a “pyramid” method, there are no real rules on weight increments and reps. It is an individual thing.