I just can't see why Putin would have him killed. It makes no sense to me, he was already in prison, why make him a martyr now, before elections? As an idea elections in Russia are this month.
We also know Tucker interviewed him shortly before Navalny died and we know that Navalny chose to be in Russia. Maybe CIA wanted to not allow people to process the interview and move to martyr Navalny. There are some spicy stuff in the interview like the US blowing Northstream pipeline and Nazis in Ukraine so who knows.
Every media and politician is 100% sure Putin killed him without even considering any alternative.
My take is that the CIA killed Navalny in order to start unrest before elections or to make sure normies keep funding Ukraine.
On the surface it makes sense as a motive, especially as support for their Slava Ukraine cheerleading is waning hard. There's a slight potential that Russia would do it themselves as a double bluff that foreign interests did it to make them look bad.
I haven't seen anything that gives anywhere enough info to make a judgement other than it's almost certain someone's three letter agencies got their hands wet.
Support from the populace is a 'nice to have' for the regime, not a sine qua non.
They're going to continue doing what they want to do, regardless of whether they can con the population into supporting them.
That is why I think Congress will pass the $60 billion.