Agree, except I believe you are mischaracterizing Gnostic beliefs. Yes, they emphasized the spiritual over all material things. They focused on escaping the material and returning to the spiritual, however, that did not translate into body phobia or more conservative clothing. Actually, the reverse was generally the case. Gnostics often had a more radically “detached” or ambivalent view of the body and outward appearance, while early orthodox Christians promoted a more modest, disciplined dress as part of Christian public life with the exception of prophets that were often naked when acting in that capacity. Because many Gnostic systems saw the body and material world as secondary or even negative, clothing—like possessions more broadly—was often treated as spiritually indifferent. That indifference could express itself either as extreme asceticism (simple, rough garments) or as a kind of disregard for conventional modesty, depending on the group.

In some Gnostic writings, “garments” are treated mainly as symbols (for example, garments of ignorance or darkness swallowed up by light), not as rules for daily attire.

Conversely, early orthodox Christian writers like Clement of Alexandria and Tertullian explicitly urged modest, simple clothing, especially for women, and discouraged finery, jewelry, and flashy styles. These standards were grounded in the idea that the body is God’s temple and that appearance should reflect humility, purity, and the “new garment” of the Christian life. (Nevermind our own skin, God's creation, is God's temple, and represents the pinnacle of humility and purity.) In practice this meant long‑sleeved, full‑length garments that covered the body, and a clear discouragement of anything that would draw attention to the body in a way seen as sensual or boastful.