I'd actually completely forgotten about it too. Couldn't even have told you the winner without a few minutes to think about it.
2017, 2018, 2019 have completely blended into one for me. I don't remember, what happened. Well, certainly 2017 and 2018 were very similar. Mercedes and Ferraris up front with Red Bulls occasionally mixing. In 2019 Merc advantage was more profound, though Ferrari won some at the end of the season. Of course the seasons of 2014, 2015 and 2016 create another "blend".
Conversely take the 90's or 2000's and memory is much more clear for me. Seasons and races are memorized and don't get mixed up.