Start Here: VFAQ: Connected Light Bulbs vs Connected Light Switch

It’s a great question, much discussed in the forums. I don’t think there’s one clear answer, it tends to come down to your own specific needs and personal aesthetics

The following topic tends to come down on the side of bulbs:

But this next topic, equally active, tends to come down on the side of switches:

Both topics should be helpful to you.

Also, if you are interested in combining smart switches and smart bulbs, this next topic should be helpful: