FWIW, that's one reason why I turned away from commercial games and play almost only FOSS games.
Yes, they don't have an income so they are at least 10 years behind on tech and generally have less good assets (textures, shaders, sound) (there are exceptions), yes, the player base is more on the 10,000s at best than on the million (an obvious problem for multiplayer games), but on the bright side their decisions are not tainted by profitability or business model considerations.
For instance, to replace Rocket League, OP could try the soccer mode of SuperTuxKart.
Yes, they don't have an income so they are at least 10 years behind on tech and generally have less good assets (textures, shaders, sound) (there are exceptions), yes, the player base is more on the 10,000s at best than on the million (an obvious problem for multiplayer games), but on the bright side their decisions are not tainted by profitability or business model considerations.
For instance, to replace Rocket League, OP could try the soccer mode of SuperTuxKart.