Built-in including URP version  
This handcrafted environment pack is made for nice looking and well perfoming multiplatform or mobile games. :
It contains over 800 lightweight game ready prefabs with LOD stages using only 1 texture per material.
 Bushes :
 4 different species in over 60 variations.
 Grass :
 4 different grass species  in 26  variations .
 Plants/Flowers :
17 different species in 187  variations.
 Trees :
 11 different species in 140 variations.
 Terrain Textures :
 14 different textures.
 Rocks & Stones :
 13 different types with optimized collision meshes in 270 variations.
Particle FX : 4 different particle effects
  Buildings :
 7 different building types each in  2  variations. 
       
 Props :
66 props.
Sounds :
 12 atmospheric (looped) audio clips.
Scenes included : 
6 Scenes + master scene that connect 5 scenes as one world
Maximum texture resolution 4096x4096.
Polycount (LOD 0):
Bushes: 40-168
Trees: 192-890
Plants & Flowers: 6-624 
Stones: 35-276
Stone-piles: 428-980
Rocks: 129-3150
Torch: 100
Furniture: 140-240
Fences: 170-186
Statues: 398
Doors: 1852
Buildings: 2245-8143
Roofs: 54-300
Walls: 90-2180
Walks: 392-427
Chest: 332
Barrel: 640
Lamp: 66
Skeleton: 581
Bottles, Knive & Plate: 36-226