Personally didn't find Jack that funny, but at least he didn't subtract anything from the episode. We got the core 3 plus him. Take him or leave him I guess. Would I watch the episode again? Probably not. The movies themselves were boring as well, Stone Cold can only hold the episode up so much.
And no, it's not a case of "muh parasocial relationship" because I have 0 desire to ever meet them or be on the show. I'm sure that's the case for some fans who automatically whinge about celebrity guests but that's not my angle. And I think it's reductive to label everyone with guest criticism as having that issue.
Take a shot every time Jack says "like you know", when he says "we" when making a point about something that happened during the viewing like "we were just saying" or "we we all like", or when he points out something someone else said during the viewing vs letting that person make their own comment. He didn't really have any great jokes or points. He's just pointing out things that happened most of the time and saying something along the lines of "that's nuts". He also has a weird put on voice in a similar way that Mac does. It's not terrible or unwatchable by any means but it's not one of the greatest episodes ever either.
Idk I think people who are fans of RLM then go on the show, RE: Max Landis, Mac, and Jack, still retain too much of their excitement and fanboyism. Say what you want about the Patton Oswalt episode but he brought a different energy as someone you can tell has probably never watched an episode of BOTW. We know Mac went on the show because he was making the youtube relevancy rounds at the time and ended up hitting it off and coming back, but I wondered what Jack's angle might be. I checked RLM twitter and saw some minor comments and likes between the two but nothing crazy. I wonder if Mike is just interested in cozying up to someone who could introduce him to more voice acting roles. Maybe they genuinely love him in The Boys. Who knows.
Celeb guest tier list:
Mac (minus handler) > Jack > Patton >>>>>>> Max Landis