That’s a pretty steep discount! However it’s not live yet on the Google Store and apparently it’s limited to the US market for now.
Source: https://9to5google.com/2023/08/06/pixel-6a-199-discount/
EDIT: even at this time the deal is still not live on Google Store, looks like they might have a supply problem.
On Google Fi however it is listed but it is out of stock:
EDIT 2: looks like Google canceled the deal.
I bought a used one on Amazon last week for $200
However, it turned out to be the Verizon version which can never have the OS replaced due to its locked bootloader.
I returned it and bought a 7a instead, but if this sale had been available at the time I would have saved a bundle and gone with the 6a