Can someone explain Wizard101 to me

I used to play this game when I was 8 years old and I loved it, but I have very little memory of what the game is actually about. I’m hoping that hearing about how the game works will bring back some emotionally fulfilling memories.

What I remember is, obviously you’re a wizard and you choose a first name and last name based off what is available. Idk if you have more than one wizard or it changes often, maybe I’m remembering fake stuff lol. I loved the different magic types and walking around the towns fighting random mob spawns in the middle of roads.

What else am I forgetting and was it that simple? I remember the game was very complex and honestly one of the most underrated and best of all time to my child mind.