I have downloaded required entities packages:
com.unity.entities
com.unity.entities.graphics
Created new sub-scene
Put GameObject inside (in this case 3d cube) and started the program
I got 4 leaks,
when I remove mesh filter and mesh renderer and try running it again I get only 2 leaks
I have also tried to create some simple components and systems when I try to use them I will get 2 leaks for each used component (when I use some component on more entities there will be more leaks)
Is it some error in packages or unity is getting confused and I can just ignore it?