Certain Shaktas (followers of the Goddess, ie Shakti) used to quote verses from some Upanishads on Goddess Mahakali and her relation to the Lord Vishnu/Narayana/Krishna.
Thus they quote the Devi Upanishad also known as Devi Atharvashirsha Upanishad which belongs to the Atharva Veda:
I uphold Soma, Tvastir, Pusan and Bhaga,
The wide-stepping Vishnu, Brahma, Prajapati.
Other verses they quote are from the Bahvricha Upanishad of the Rig Veda:
Om. The Goddess was indeed one in the beginning. Alone she emitted the world-egg. (She) is known as Love’s Part (IM) [Kamakala]. (She) is known as the half-syllabic instant after OM.
Of Her was Brahma born; was Vishnu born; was Rudra born.
Obviously Shaktas and Vaishnavas interpret these verses differently.
But my question is, what do Bhashyas say about these verses and what they reveal about Goddess Mahakali's relationship to the Lord Vishnu? Do these verses state any possible superiority of the Goddess over Lord Vishnu? Note that I'm not asking what users think the meaning of these verses is, just what Bhashya have to say.