The command “influx user list --token a1b2c3d4e5f6g7h8i9j0a1b2c3d4e5f6g7h8i9j0==” only returns the first 20 users that were created, and there is nothing in the documentation that explains why, nor how to bypass this limit.
https://docs.influxdata.com/influxdb/v2.7/reference/cli/influx/user/list/#flags