Yes, if you're heading into the backcountry, ISO 9523 touring soles are what you want. They have a rockered (curved) toe and heel that makes walking uphill much more natural and comfortable compared to flat, rigid alpine soles. They're also lighter, which your legs will appreciate on long ascents.
The trade-off is that touring soles are more flexible, so you sacrifice some power transmission on the descent compared to a stiff alpine sole. For most backcountry skiers, that's a worthwhile compromise.
The big compatibility catch: not every ISO 9523 boot works with every touring binding. Pin-tech (tech) bindings require molded-in tech fittings on the boot toe — just having an ISO 9523 sole isn't enough. Frame-style touring bindings are more forgiving but heavier. Always verify your specific boot-and-binding pairing, since a mismatch can cause dangerous release failures in the backcountry.