Jewel support Critical multiple for physical bow build ?

Planned to use Rain Of Arrows and I found out that this physical bow build only get benefit from global mod % to Global Critical Strike Multiplier. Other ones are % to Critical Strike Multiplier with [Elemental] Skills or % to Critical Strike Multiplier with One/Two Handed MELEE Weapons, because it's melee only so it won't work on bow.

Sounds correct. There are plenty of other damage mods that work with phys bow though. flat phys bow damage on abyss jewel for eg, or on viridian jewel you can get % phys bow dmg, bow aspd, projectile damage, and all the generic damage/aspd/crit mods too.