What content falls into the 'Levels' (Build)

Hello! After building, I have a very large amount of data at the ‘Level’. What is there?
I use Ligthmap, but I think they should be in ‘Textures’.
The game has about 30 levels. This is a 3D platformer.


6931: [Unity] Build Report

6932: [Unity] Uncompressed usage by category:

6933: [Unity] Textures 47.8 mb 8.5%

6934: [Unity] Meshes 3.5 mb 0.6%

6935: [Unity] Animations 54.2 kb 0.0%

6936: [Unity] Sounds 1.8 mb 0.3%

6937: [Unity] Shaders 1.8 mb 0.3%

6938: [Unity] Other Assets 1.4 mb 0.3%

6939: [Unity] Levels 345.3 mb 61.1% <===

6940: [Unity] Scripts 3.8 mb 0.7%

6941: [Unity] Included DLLs 5.1 mb 0.9%

6942: [Unity] File headers 2.7 mb 0.5%

6943: [Unity] Complete size 565.4 mb 100.0%

6939: [Unity] Levels 345.3 mb 61.1% <===

Levels are the size of object generated by static batching.
try Disabling Static Batching

in Player Setting & notice its effect.

Thank you so much. It works!