"Can" is very different than "Is it as capable" than "is it worth it"
Trails I ride, I CAN ride a hardtrail but likely won't. Too rough, and creates some limiting factors. In my younger years, I rode a hard tail everywhere. Definitely limited my speed vs a fully but didn't limit where I could ride. Although I should note, I have 160mm fork.
Now outside of the flatter areas of the continent and pump dj parks, I ride a fully exclusively.