I've had my fiddle leaf fig for three years now and finally cracked the code on the browning leaf edges

I've had my fiddle leaf fig for three years now and finally cracked the code on the browning leaf edges. Turns out it wasn't underwatering—it was the mineral buildup in my tap water. Switched to filtered water and the new growth came in clean. Still loses a leaf or two if I move it around too much, which is annoying, but honestly that's just how they are. Anyone else found a water solution that actually works for these?