This is what I was thinking. Children play with what they have, and what they find, and use their imaginations. Often the children with the most are the ones bored. I didn't have much at all, DS didn't have a lot. He wasn't watching much television either, he was out a lot playing at the playground, on his balance bike, in the woods, climbing trees. At home he was happy to play with the same toy for ages. He'd make a den from blankets, jump from sofa to cushions. He was rarely bored
This is my son too. He would be out 24/7 living in a tent if we let him. He's at nursery 3 days and the rest of the week we're out and about often for the whole day. He's happiest in the woods, at the beach, or on his bike.
But I do like to provide him with a variety of toys at home. I think it depends less how many toys they have but more what type of toys they have. Quality over quantity.
That doesn't mean the toys need to be expensive "aesthetic" looking things. More that they need to be durable, timeless, and open-ended. It's good to cover a range of categories in toys for kids. I think if a child of OP's age has a selection of construction toys, small world toys, role-play toys, books, arts/crafts, gross motor and fine motor toys then that's fine.
The kids I see who don't know how to play independently are the ones with a random jumble of toys that can't be played with together- often bonkers plastic things that beep and flash and only serve one purpose. Whereas a box of magnetic tiles can be tunnels for train sets, houses for teddies, ramps for cars, a castle, a barn for toy farm animals and so on.