Yup. I don’t even get what “populism” is when mentioned in media. Isn’t that-- democracy?
Populism is demagogy, it’s repeating people’s complaints back to them, to amplify them and place yourself as an apparent leader, but without actually bringing any solution - and when it does, it’s immediately far right “beat everyone out”. Democracy is actually creating policy and voting on it, which by definition implies people disagreeing in that vote. Populism is rounding up everyone with the same mind, excluding everyone else (not voting on anything) and trying to crush opposition with numbers and no policy. It’s the antithesis to democracy.
Edit - it might depend on the region of the world, I don’t think I’ve seen a lot of left wingers be called populists. Originally it just means the opposition between the people and the elite, so that would match what you say, and apparently some left parties are trying to return to that definition for some reason, but it seems the Pope is taking the other version that has become much more common.