There are occasions during “Full Swing,” the Netflix series chronicling the 2022 PGA Tour season, when ardent golf observers will cringe.

Taking cues from the streamer’s foray into Formula One, executive producer Chad Mumm and his crew explained some basics to fit narratives and educate those unfamiliar with the game.

And so we are told what birdies and eagles are — with graphics! — and a what tournament cut is — twice! — and that a caddie does more than carry clubs. We’re also informed that the RBC Heritage, won by Jordan Spieth, is an important early season event, even though it falls past the midway point of the schedule and after the Players Championship and Masters.

Somewhat nauseating, but evidently necessary, documentary-making devices.

But if part of Munn’s mission was to capture the pitfalls of golf, and the plight of those who play it professionally, he shot a 59 — Narrator: “A 59 is considered golf’s magic number because a score under 60 happens so rarely” — when he shone the spotlight on Brooks Koepka. This is the second episode of the series and, in my mind, the best.

As you, keen golf watcher, knows, Koepka was largely unstoppable in winning three majors in four years, his success rate matched only by his considerable swagger. The Floridian brought a baseball player’s body and machismo to the sport, a tobacco-chewing long bomber who revealed little about himself apart from a burning desire to crush his competition. “I don’t care,” was a phrase he repeated when reporters reached for revelations. Sometimes more words followed, sometimes not.

Then injuries interrupted Koepka’s reign and the major titles ceased. He contended, but he did not conquer, notably losing to 50-year-old Phil Mickelson at the 2021 PGA Championship. Last season, he wasn’t a factor in any of the four majors, and before departing the PGA Tour for LIV Golf, he netted just two top 10s in 13 starts.

This is the state in which the “Full Swing” cameras find him and the contrast between the confidence he once oozed and the depression over his struggles now is startling and fascinating.

“This (bleeping) thing can consume you,” Koepka says of his slump.

Smartly, Mumm juxtaposes Koepka’s slide with the sudden rise of Scottie Scheffler. The Bible-abiding Texan outplays Koepka and others at the WM Phoenix Open for his first PGA Tour victory and takes off from there, winning three more times, including the Masters, over the next two months. His run is reminiscent of Koepka’s but the two men are polar opposites. Of his new-found fame, Scheffler smiles and says aw-shucks whereas Koepka wanted us to believe he never gave two … well, you know.

In “Full Swing,” the usually cryptic Koepka is brutally frank and despondent.

“I’ll be honest with you, I can’t compete with these guys, week in, week out” Koepka foreshadows during dinner at the 2022 Masters, where he misses the cut with scores of 75-75. “A guy like Scottie, he can shoot 63 every day. I don’t know.”

A cynic might suggest those words were scripted but Koepka still had to say them. In this scene he speaks of the success he craves again. He was never a country club kid. Never a junior sensation. Never a can’t-miss prospect. He went to Europe and played golf’s minor leagues there before earning his PGA Tour card with a tie for fourth at the 2014 U.S. Open. And then he skyrocketed and surpassed the likes of Spieth and Dustin Johnson and held off Tiger Woods to win the 2018 PGA. He was ruthless as he ruled.