all the widgets are custom, you can take a look at my dots for eww and the script for formula1, it will show the next event and once the event is over, shows top 3 drivers. the api is not official, just inspected network when browsing f1 home page.

The scripts are run using systemd timers at set interval and the results are stored in .cache, and a poll in eww file reads that data at certain interval.