Hello, Guys.
I made this for those who has low end pc or lower ram which makes your viewport laggy and unplayable.

• Create a cube or any mesh, import Far-Fader As modifier
• In scene collection choose the high poly scene you want to optimize (note - for no loss backup the file Without modifier)
• now add a camera
• set the LOD distance levels in meters ex, LOD 1 - 20 m, Lod2 50m etc.
• set resolution in resolution section higher the value lower the quality (use lower values for nearest)
• After Selection of collection in modifier tab hide the main collection to get result.( Make sure the object which has node group should not be in that collection )

**Logic - When you use your set your camera as active the scene under camera frame only get details and also objects far from camera (defined as LOD Radius) will Change its polycount/resolution which highly improves frame rate, lower the memory consumption achieving smoother viewport navigation **

note - nodes are currently not useful for particle system
It also not tried for rendering purpose but i think it will work cause its lowering the polycount

If anyone uses it for rendering let me know in comment if it works

Happy modeling !