Has Michael Brooks ever criticized Bernie or M4A for failing to include government takeover of the hospital system? Or has he ever criticized Bernie for kowtowing to the military industrial complex when he lobbied Lockheed Martin to build the F-35 warplanes in Vermont? Genuinely curious, I've only watched a few of his episodes.
Brooks recently mentioned that you could find moves where Bernie focused on his constituents in Vermont first (ie: the Lockheed Martin vote and his vote for the crime bill which he explicitly stated he was putting his constituents and the Violence Against Women Act first). In just the past week he's said Bernie should take note of Andrew Yang on the war on drugs (Bernie's for marijuana legalized federally, Yang is for the Portugal model) and also mentioned that while he's not as big on the issue as others, he disagrees with Bernie on keeping the filibuster (that's a notch for Warren).
The heads that claim he's biased or act like he's hammering Warren could backtrack and catch him firing off HEAVY on Yang's UBI, Tulsi's isolationism and Mohdi support, Kamala's downplaying of policies she supported and literally everything about Pete Buttigeig (dude hates Pete especially hard). He's been a lot harsher on the worse candidates, but now that it's a three horse race he's drawing comparisons with the prefaces built in that Warren is best option sans Bernie (to oversimplified paraphrase him, Warren is where he'd like to see a sincere center of the political spectrum form); and that it's completely fine to agree to disagree on strategy.
I don't think you'll find him hitting Bernie's M4A bill though...it's too far ahead of everything else proposed so far. The Natalie Shure interview he did last week can lay out the concerns they both share for Warren on that end; though my own personal feeling is she's humoring the centrists by keeping the door open and not vice versa though. We have seen that script flipped enough times that a chunk of lefties I rock with are skeptical of any leeway though. Not because it means a candidate will just about face on the argument, but there's concerns about how hard a candidate will fight for the issue.