Feature Request Improvements that I would like to see made to the terrain system

I would like the terrain in Unity to receive some improvements
1) I want the paint tool for trees to have filters similar to those from details (Brush Mask Filters)
2) I would like the vegetation (details) to be able to have LODs (similar to trees). That would help a lot on the performance side.
3) I would like to be able to create custom shader graph materials for the terrain
4) The terrain can have several layers (more than 8)
5) Other things I would like the terrain to have: terrain/object blending, anti tiling, tessellation, triplanar texture
6) To be able to create roads on the terrain using the new spline system


The terrain in Unity is very useful but a bit outdated (many other users share the same opinion). I would like that in the future (probably when Unity 2023.1 / 2023.2 is released), the terrain system will receive some significant improvements (workflow, performance, optimization, etc.).

I'm sure these things aren't hard to implement, and they shouldn't be, considering how big Unity is as a company. Please listen to the feedback of the users on the forum in order to bring other improvements to the terrain ^ ^