MLs are not passive wishcasters for revolution and liberals don't fight for "actual progress", they just vote for what is on offer and barely even complain when the "actual progress" doesn't happen, if it's even promised in the first place. In fact, they attack those who are critical of this failure to improve conditions. Communists are constantly doing work that is not revolution an helps others / resists oppression, but they also understand that the necessary changes will never be permitted short of revolution - which is why liberals consistently fail and backslide on promised reforms when they aren't just overtly oppressing the global south.
MLs are usually the least naggy when it comes to personal consumption choices, that's more of a faux lefty liberal thing. But we will make fun of your Tesla and other things that make you ridiculous. Also none of this has anything to do with praxis. Liberals treat words like kids treat toys they find on the ground.
But they got one thing right: MLs correctly identify capitalism as the current overarching force for oppression. I don't think they really thought that one through, though, because I guarantee none of them can defend capitalism. Most probably can't even define it.