Like O.J.: Made in America, Long Strange Trip was given a limited release on the big screen in large cities, but I assume most viewers caught it in more pee-break friendly chunks on a streaming service, where many similarly epic music docs have also prospered. On Netflix, you can currently catch Runnin' Down a Dream (238 minutes), which chronicles Tom Petty's career over a leisurely runtime, or History of the Eagles (187 minutes), which multiple hours devotes to Glenn Frey and Don Henley's rock star antics. Countless stories about snorting cocaine are only a click away.
There's a long, rich tradition of rock doc girth and some of it can be attributed to one our greatest living filmmakers. Martin Scorsese, who executive produced Long Strange Trip, served as an editor and assistant director on Woodstock (185 minute original version; 225 minute director's cut) from 1970, and later in his career he directed the Bob Dylan biography No Direction Home (208 minutes) and George Harrison: Living in the Material World (208 minutes). The cliches of the rock doc -- the talking head interviews, the anecdotes from burned-out roadies, the clever editing of live footage -- make for ideal comfort viewing.