The main problem with the Steam awards is that they don’t respect the actual release dates. For example, Red Dead Redemption 2, a 2018 game (or a 2019 game if you go by PC only) was named the Steam GOTY in 2020.
Steam also had little to offer in the years that were heavy on Epic exclusives and great games like Kena or Control, resulting in it being hard to think up a nominee.
Moreover, if I remember correctly, they also bar prior winners from their “most supported game” type category, which makes no sense because some games, like Euro Truck Simulator 2, get regular content and technical updates to this day. On the other hand, The Witcher 3 recently won in a category despite having been untouched for years.