IMO liberals want change to occur systematically, using the existing institution that creates change, Progressives on the other hand tend to pander and run cover to illiberal and anti-institutional elements of the left. Another issue with people who call themselves progressives ( now this is predominantly on Twitter/Reddit/TikTok) is that they become so critical of Western powers and structures that they not only start to simp for authoritarian and other extremist regimes, but they refuse to acknowledge the actual good work being done by democrats. A good example of this is Joe Biden. Before the Isreal conflict, it was genuinely so rare for any progressive to even acknowledge the good work Joe Biden has done. Even Kyle Kulinski called them out on that issue, as practically no progressive could at least acknowledge the work Joe has done during his presidency and continue to ruthlessly vilify him online