I feel like AIM was the de facto god-emperor of IM platforms and the rest were just also-rans.
Maybe that was just my experience tho, but I feel like ICQ and IRC were older but more clunky, MSN and Yahoo were newer or contemporary but less dependable and had less buy in from the community.
The amount of times I’ve struggled when setting up monitors over the past 5 years with HDMI and DP…only to have them eventually work in a way I had it previously when it wouldn’t…is too damn high.