Unity had unreal are both excellent million $$ packages you can use for free(ish) that come with integrated editors and asset pipelines, massive plugin/package ecosystems and even one click playable templates.
What more do you want?
It takes too long to open the editor? Cry me a river! What do you want, a lean editor / hit code reloading / functional code only / truely free? Look at bevy or Godot.
I mean come on, this is the golden age of indie development for games, where literally anyone can make a game in like a days effort following a YouTube tutorial.
The tooling is bad. Pppohhfhfhfhfhttt.
This is like some saying they don’t use the internet because the speeds are too slow when they don’t have a free optic fibre literally from the provider to their door step.