Peak currently is all the craze... And that's just a recent one.
There are games made by teams of 2 that have sold over 2 million easy or the GAAS equivalent. Huge games but not big in your eyes because

The whole "cozy" or slice of life genre is vastly unexplored on consoles compared to PC. At any giving time you can probably look through the top 25 and find 5 or more from that alone.
Then there are games like LoL and Dota which aren't on console at all and are probably top 10 monthly. Plus tons of games that are now on console but have been PC exclusives for years or on steam alone have over 2 million sales not including console sales.