Fog Depth missing in Godot 4?

[Krasapan]

Godot version

4.1.1.stable

System information

Windows 10.0.19044 - Vulkan (Forward+) - dedicated NVIDIA GeForce MX330 (NVIDIA; 31.0.15.1640) - 11th Gen Intel(R) Core(TM) i3-1115G4 @ 3.00GHz (4 Threads)

Issue description

Seems that Fog Depth feature is missing in Godot 4:

Why do I need Fog Depth?
To fix such artifacts that occur when anything in the distance is on the same distance as camera's render limit:

Depth hides that "seam" pretty well.

I tried to hide that seam with Volumetric Fog, but it doesn't work that well as with Fog Depth, it's either don't hide the seam or hides it if I make general volumetric fog density insanely high that significantly obstructs vision

Why was Fog Depth removed?
If yes, then why?
If no, where it was moved?

Any ways I can fix my problem (smoothly hide camera render limit seam) without Godot 3's Fog Depth in Godot 4?

Steps to reproduce

Download reproduction project (Godot 3.5.1), press arrows Up and Down to move mesh and observe how fog with Fog Depth smoothly reveals mesh in camera's sight

Minimal reproduction project

Fog Depth.zip

[clayjohn]

This will be fixed by #66030

[Calinou]

Closing in favor of godotengine/godot-proposals#4619.