Reading the Haftarah from a Tanach

Prayers and Blessings
1

Is there an inyan to read the Haftarah from a full printed Tanach or is it the same as reading it from a Chumash?

2

There’s an Inyan to use a Tanach.

3

Thank you

4

how about a klaf should that be pursued

5

The Rabbi did not pursue.