https://wccftech.com/google-ad-settings-gets-a-material-theme-redesign-and-claims-to-give-you-better-control-over-your-ads/

Google is what it is today because it knows what ads to send to you. For the most part, they’ve been pretty open about it and let their users get an in-depth look into what ads they might see, based on their interests. Today, the page gets a fresh coat of paint and some new features that allow you to customize the ads you see even more. According to their blog post:

Today, we’re launching the new Ad Settings, which makes it easier for you to understand and control how your ads are tailored to you. We’re also providing more transparency around why you see certain ads by expanding Why this ad? to all of our services that show Google ads (like Search and YouTube) and almost all websites and apps that partner with us to show ads.