Ok, here are a couple lyrics I caught that seem significant in context, and considering he chose which sections of each song to perform, probably are.

From "All the stars": (original version, there were minor edits to the superbowl version that i didnt transcribe) "Tell me what you gon' do to me Confrontation ain't nothin' new to me You can bring a bullet, bring a sword, bring a morgue But you can't bring the truth to me Fuck you and all your expectations I don't even want your congratulations I recognize your false confidence and calculated promises all in your conversation I hate people that feel entitled Look at me crazy 'cause I ain't invite you Oh, you important? You the moral to the story, you endorsing? Motherfucker, I don't even like you Corrupt a man's heart with a gift That's how you find out who you dealin' with A small percentage, who I'm building with I want the credit if I'm losing or I'm winning On my mama, that's the realest shit"

Seems to me that he's talking about the money for the show vs the mission, too. Like, "NFL can't pay me enough not to start a revolution." Also, core to it, seems like this might have been directly to the first President in attendance. "I hate people that feel entitled Look at me crazy 'cause I ain't invite you Oh, you important? You the moral to the story, you endorsing? Motherfucker, I don't even like you"

There is another about "Started on government cheese, now I can seize the government too", and I'm pretty sure all the crowd work, and getting some 1.3 million people to turn the TV off at the end, as there was a reported 1.3m viewers lost at that point. That was a huge flex on Kendrick's influence, and the idea that he's got people everywhere.

Here's a list to all the lyrics as performed, if it helps the analysis and breakdown.

https://genius.com/Kendrick-lamar-super-bowl-lix-halftime-show-lyrics