Polos/casual shirts tucked or untucked for business/smart casual?

I just started working in an office after being remote and got some polos and casual shirts for variety. They fit alright but they are meant to be worn untucked. I think I would like the look for polos tucked in slightly better w/ a good belt and chinos, but for casual shirts I think untucked would still be okay for business casual. Any takes?