**System Information**
Operating system: Windows 10
Graphics card: NVIDIA GeForce RTX 2070 Super
**Blender Version**
Broken: 2.91
Worked: None
**Short description of error**
Scene statistics(polygon count indicator) doesn't include particle systems. When we use particle systems rendered as objects, statistic numbers such as vertices, tris, quads, faces should include particle systems as well. This is important because scattering objects(such as plants, rocks, etc) on a surface takes a lot of memory while rendering and creators need to predict how heavy the scene would be.
**Exact steps for others to reproduce the error**
{F9511594}
Based on the attached .blend file, change the particle number. Object number in the scene statistics changes accordingly, but others(vertices, tris, quads, faces) do not.