Mookie Blaylock and John Lucas are tied for the most games with 22+ assists and exactly 0 rebounds in a season, with 1 game.

most games with 22 assist 0 rebounds in a season
Interpreted as:
most games by a player with 22 or more assist 0 rebounds in a season
Mookie BlaylockMookie Blaylock1992-93ATLATL123037.
John LucasJohn Lucas1983-84SASSAS124028.
StatMuse has game-level data for assists and rebounds going back to the 1982-83 season.