One could check/confirm by looking for a geniculum on the petiole of those larger leaves. Homalomena would have that, Philo does not. Philo scandens can make larger leaves like these.

There is no distinctive odor with fresh tea Camellia leaves. I would treat it as a houseplant till you learn more. You may have to wait for it to bloom before you know with certainty. I would place it outdoors in partial shade once frost danger is over. It will certainly grow better outdoors during the warmer months. Tea blossoms are white with yellow centers and about an inch across. They are usually fragrant and typically bloom in fall. Bees find them irresistible.

Yes, they will fruit this year. They are really good value - I grew a few plants last year and have had my own grown dried Chillies all Winter from a few plants. They are way easier than tomatoes. I always grow mine from seed. These aren't Chillies, they're Hungarian Wax peppers from seed. As you can see by the Hoya in the background they are perfectly happy growing in my porch.

They're really cheap, so treating it like an annual is cool. I always dug mine up and tossed them in paper bags. Eventually they got really big, like wagon wheels, so I'd cut them apart and store the pieces. When I got bored of them, I just let them in to rot back in during winter.