On this day Google made an update to the list, mostly to adjust dates.
Japan: some prefectures were extended a few months, up to June 2022.
Italy, 
Portugal: those countries were extended to March.
Germany was extended to September.
Singapore was added back to the list for the whole year.
Indonesia was added to the list. Cars were always driving in this country in the past, continuous updates are enabled and we can already find February 2022 coverage so this addition is not really a surprise. However the data shows Google plans to update the islands east of Java this summer (Bali, Nusa Tenggara).
That’s it for this update. Thank you for reading and see you next time!