Trae Young has the most games for the Hawks with 30+ points and 8+ three-pointers, with 7 games.

atlanta hawks player with most games with 30 points and 8 three points
Interpreted as:
atlanta hawks player with most regular-season games with 30 or more points and 8 or more three points
Not what you're looking for?
Trae YoungTrae Young72925637.441.
Cam ReddishCam Reddish133840.
Bogdan BogdanovicBogdan Bogdanovic132840.532.
Danilo GallinariDanilo Gallinari1381033.538.
Steve SmithSteve Smith136941.
Dominique WilkinsDominique Wilkins137837.
StatMuse has game-level data for three-pointers going back to the 1979-80 season.