From Bulbapedia, the community-driven Pokémon encyclopedia.
The Sword & Shield chapter of Pokémon Adventures is being separately collected into mini-volumes by Shogakukan in Japan. The volume releases began on June 26, 2020. Once the Sun, Moon, Ultra Sun & Ultra Moon chapter ends in the regular volumes, the Sword & Shield chapter will be properly collected in that format as well.
List of volumes
|| Volume 1
|| ISBN 4091432174
|| June 26, 2020