Unity employed Mike Acton a few years ago, who is now lading their transformation to a data oriented backend. They are switching everything out for a pretty well thought out Entity-Component-System (not the old Component stuff you had in unity, but a way of saving your game data in arrays of the same type for performance, instead of as objects with data that should not be together in memory). I have not kept up in the last year, but already a year ago this was showing many promising results, being able to simulate enormous amounts of agents in games: https://www.youtube.com/watch?v=L9_7QYaeNjc

Unreal and Godot have their good sides (Unreal being great for non-coders and/or if you want to an FPS, Godot being able to bind to many languages in the backend and being open source). But none of them is doing the same huge transformations in the backend as unity.

On some tiny synthetic benchmark maybe.

Come back when your engine can handle something even 1% as complex, as say, Dyson Sphere Program.

(a recent example of some dots I moved) https://twitter.com/LeapJosh/status/1378056437105049603

Not saying DragonRuby isn't the bees knees, I've never used it but appreciate alternatives existing.

Despite that, sprites are the wrong facility for drawing that many dots in unity.