what is optimal size for 2d sprite (no pixel art)

Godot Version

4.3

Question

Hi dudes! what do you think about what’s optimal size for 2d sprite for mobile game? maybe this is a stupid question, but I’ve seen that many people use pixel art, but I want my textures to be smooth 2d and also well optimized!
I will be very grateful if you answer my question!!!

Only you can answer that question, as it will be entirely dependent on the nature of your game.