I found this interesting

There is a discussion concerning the use of the Zohar. A point is missing
that seems to me quite important. The issue is "what is one using the
Zohar for."

1. One school of thought uses the Zohar as a talmudic source.

2. One school of thought uses it as a rishon.

3. One school of thought uses it as a source of minhagim.

It is much more important to determine what it is used for, than to
determine how many times it is used. It is my view that except for one
famouse use in the BY (EH 25) all the uses are in category 2. Magen
Avraham uses them as a category 3. Some of the discussion about tefellin
on chol hamoad use them as a category 1.

Michael J. Broyde
Emory University School of Law