Yes—if you're using a splitboard to access backcountry terrain, you need splitboard bindings. These bindings have a walk mode that lets your heel pivot freely for efficient uphill travel, plus heel risers that reduce calf strain on steep climbs. When you're ready to descend, they lock into ride mode and function much like regular bindings.
The trade-off is weight and sometimes ride feel. Splitboard bindings tend to be heavier than comparable resort bindings due to the touring mechanism, and while ride performance has improved significantly in recent years, some riders notice a slightly different feel compared to dedicated resort bindings.
If you're mostly riding the resort with occasional sidecountry laps, you might be fine with regular bindings and a splitboard adapter kit instead. But for true backcountry touring where you're spending hours on the skin track, proper splitboard bindings are worth the investment for comfort and efficiency alone.