Did Any Acharya like Bhaskaracharya, Utapaladeva, Abhinavagupta etc. from Tantrika sect write their own commentary on Mukhya Upanishads? If yes, Please share the link to the book/text.
1 Answer
In general, Tantrika gives practical implementation of the path most importance. And they don't tend to write commentaries on the texts of different school of thoughts.
However I could find only one commentary on Ishopanishad by Kaulacharya Satyananda available on archive.org: Ishopanishad