Unity always uses dynamic batchingAn automatic Unity process which attempts to render multiple meshes as if they were a single mesh for optimized graphics performance. The technique transforms all of the GameObject vertices on the CPU and groups many similar vertices together. More info
See in Glossary for dynamic geometry such as Particle Systems
To use dynamic batching for meshes:
If your project uses URP, the Scriptable Render Pipeline (SRP) batcher is enabled by default. To enable dynamic batching instead, go to the URP Asset and enable Dynamic Batching.
Unity automatically batches moving meshes into the same draw call if they fulfill the criteria described in the common usage information.