I originally began using Tef-Gel when I lived in the Northeast where roads were salted for 4+ months/year; it resembled the marine service Tef-Gel was designed for. Its high PTFE content adds lubricity and helps avoid galling of stainless and presumably Ti; works great on pedal and BB threads.
Anti-seizes with nickel and copper excel at high temperature service (think exhaust systems) which is not an advantage for bikes. I also think that introducing one or more additional metals into a galvanic mix may be less than helpful.
I think that threaded fasteners made of aluminum (cough, spoke nipples, cough) are a mistake in most instances, especially vs other aluminum parts.