FALD? It's so rare it's practically unheard of, some very high end HDR-compatible monitors have it, but I wouldn't describe it even remotely as "most". In fact

FALD? It's so rare it's practically unheard of, some very high end HDR-compatible monitors have it, but I wouldn't describe it even remotely as "most". In fact I'll eat my hat if 99.99999% of monitors out there use anything other than edge-lit panels that don't change brighthness no matter what you display.