That's all up to you how you want to handle it.
But generally speaking when I do it
Layers:
Players
Enemies
Colliders
Ground
Foregrounds
Hey there, it's been 3 years since I've originally requested this feature, I see that several other things have been done by you since. What is the status on the gray overlay being removed as an option.
Thank you for your understanding (as I figured 3 years is a good amount of time to patiently wait without seeming like a nag).