Fighting in the Age of Loneliness is insanely great. I don't think there's anything close to it as far as covering the breadth and width of the sport up through the pandemic. I've watched it twice and thinking about it today is making me want to watch it again.

If you like that, Napoleon Blownapart's videos are probably the next closest thing. A bit more of an obscure recommendation (but free on Youtube!) is The Smashing Machine, a doc about Mark Kerr's personal trials and tribulations during the Pride years.