Godot is the best open source engine because it is dead simple to use, comes bundled with its own IDE and documentation, the editor runs on any platform that Godot runs (including the web) and the performance benefits for something like Bevy only apply to a handful of games that really need it.

Godot gives GDScript simplicity for the vast majority of use cases which is that iteration boon, provides C# for games that need the additional guardrails. For performance critical game scripts you can just jump to C++, Rust, Swift, etc.

But most game scripts are not performance critical. Clair Obscur: Expedition 33 swept the game awards last year as an Unreal Engine game made using almost entirely visual scripting (blueprints).