That's funny because I think that was around when I played. I only ever played with at least a duo though. I'd almost never play on my own. Not because I couldn't play well enough, but because I didn't want to have to deal with people alone.
I enjoyed my time (not all of it but some) and watching Arcane made me miss it. But I don't think I'd go back to league. Maybe tft and we'll see how the mmo does.