These cards appear at the very bottom of google.com. There’s a “Hide content” toggle in the bottom-right corner, while Google notes your zip code/city and explains that the information offered is “Based on your past activity.” When the window is fully expanded, six cards are offered and they all expand on hover:
- Weather: Condition (with) icon + temperature. Three-day forecast on hover
- Trending: Cover image with search count
- What to Watch: Shows and movies with cover art
- Stocks/markets: Day graph on hover
- Local Events: With date
- COVID News
Tapping opens the full web result with the usual Knowledge Panel card and/or related Google Search experience. The number of cards that appear depends on the size of your screen with no way to scroll and see more without physically expanding the window. We’re only seeing this rolled out on two Google Accounts, albeit across several signed-in devices, today. As such, this is very likely a test to determine whether a full rollout is warranted.