Ask HN: Are advertisers stealing Christmas?

I've started my Christmas shopping and a few years ago my partner wanted a VR headset. So I did some research and purchased one this year.

Now my partner mentioned to me that VR headset advertisements are being shown and found that "odd". That is on a different device/profile in the house. Same IP though.

I didn't mention anything. "I guess it's a popular gift for Christmas"

How are you doing your Christmas shopping online to prevent such situations?