As per the article, it is by itself not a new technology. Meta has been using this for years and is standard in the industry. So I’d wager most respectable browsers would have tracking prevention that stops this.

What is new, and what this article talks about, is that ChatGPT can attach your browsing habits to things you’ve shared with ChatGPT itself. As in, possibly very private details about you and your life.

I can recommend Hetzner Storage Boxes. The company is located in Germany, but you can choose server locations in Germany and in Finland. You can set it up with Rclone’s Crypt feature to encrypt all your files.