Does your philosophy have to align with your lineage in Tibetan Buddhism?

I’m in Drikung Kagyu and have a lama in that lineage and find the Gelug approach to emptiness to be extremely helpful to viewing emptiness. I know all these philosophies in Rime point to the same truth, but I still wonder how its viewed to hold philosophical positions from another lineage but of course keeping the practice your lama outlines for you? I’ve read Tulku Rinpoche book on Rime and in the beginning it says to keep integrity of lineages, but obviously now many lamas receive teachings from multiple lineages. Am I ok in viewing emptiness from a Gelug pov as a Drikung Kagyu if it’s helpful for me?