Should you cover exposed roots in potted plants?

Yes or they can start to die off

When roots start to show in your planter then its time to repot into a larger size ..

Time to repot in next size up container. If the roots are left exposed too long the plant is susceptible to pests or could die.

Just putting potting soil on top is not good because the roots you see have been pushed up from overgrowth down below. When you repot, you may need more drainage, more soil for the roots, and more soil and mulch for the top layer. It's usually best to just water the plants well, and wait a week before fertilizing. Best wishes 😇

Yes, you should cover them. As the others said, your plant probably needs a larger pot then you'll have room to adequately cover the exposed roots.

Yes it helps them grow better