I saw somewhere in Moodle docs that if the teacher assesses a workshop submission, the teacher's rating or grade is automatically considered the 'best' grade. Does this mean that Moodle then disregards the consensus 'best' grade, and that Moodle then gives the other student assessors a grading grade based on the distance from the teacher's grade, instead of the distance from the consensus grade?
the teacher's rating or grade is automatically considered the 'best' grade.
No, that is not how it works. There is nothing special about the teacher's review. I am not aware of a place in our docs that would mention it. If you manage to find it, please let us know so we can fix it.