Is the following a characteristic of early hunter-gatherer communities?

Lived in small dwellings made of baked mud bricks

No, living in small dwellings made of baked mud bricks is not a characteristic of early hunter-gatherer communities. Hunter-gatherer communities typically lived in temporary shelters such as caves, tents, or huts made from natural materials like branches, leaves, and animal skins. The use of baked mud bricks for dwellings came much later with the development of sedentary farming communities.