The project gives material discovery a serious upgrade by creating better materials through clever chemical synthesis and high-pressure post-synthesis treatment using a diamond anvil cell, combined with cutting-edge structural and physical property measurements. Pressure acts like a clean, ultra-precise post-synthesis tuning knob, reshaping LFHMFs by controlling their crystal lattice and electronic behavior at the atomic level to dial in key material properties. Band-gap narrowing, longer carrier lifetimes, boosted photoluminescence, ambient-memorized retainability, metallization, amorphization, and phase transitions all present exciting new possibilities for hybrid molecular ferroelectrics (HMFs). Still, so far, these techniques have primarily been applied to well-studied, toxic, and unstable lead-containing HMFs. That's why it is vital to dig deeper into the structure–property relationship in LFHMFs and connect the standout performance of the best, most stable materials to specific structural features. This insight is key for both fundamental research and real-world technologies, since creating lead-free, hybrid, switchable materials with non-toxic or less toxic components and excellent long-term stability is still one of the big unsolved puzzles.