Wife buys too much

Salam, my wife and I have been living together since the start of marriage and I was able to have a better understanding just how much she spends on senseless things.

For context, my wife is a huge gamer. She has played any and all games and a lot of the content she consumes in her downtime is always a gameplay video, desktop setups, tech gadgets etc. She would buy vintage handheld portables, computer parts, accessories for her controllers, the works.

I knew this before marriage as her parents told me, they always supported it and I found it endearing initially but it’s a bit concerning now. I just thought that this was a small hobby of hers but she is really keen on having the “set up of her dreams” and spent well over 4000 dollars over the past year for her desk.

Now everything she bought is her own money, I am not trying to tell her how to spend it, but since we are living in a shared space, I feel like I do have a say since she is bringing these things home. Her reasoning behind this is because growing up she always had to share her room with her older sister who is an extreme minimalist, and she never had an outlet to get the things she wants. She claims that buying these things “heal her inner child” 😑

Anyways, I’m kind of getting tired of this hobby of her, and seeing a new video game on the shelf or a cardboard box of some techy gadget every other week. I kind of would rather her pester me for designer bags or shoes than talk about her games. How do I kind of tell her to ease the spending on these needless things?