I forget who said it, but I remember a quote like, "When a bipartisan bill is being introduced that's when you know the people are getting well and truly fucked."
EDIT: Not a quote, but this is an article from the Harvard Political Review about US policy: https://harvardpolitics.com/deadly-bipartisanship/
Among some of the bipartisan bills are the 94 Crime Bill, The Patriot Act, yearly military budget increases, it's really a highlight reel of the fucking worst, most infamous bills from US politics.
I'd be shocked if any liberal electoral system was significantly different to this.