4th Gen Side View Mirror Compatibility Question

OK had a bit of a mishap.

Snapped drivers side mirror off on 2021 Prius.

Looking at car-part website the 2016-2020 heated mirrors with blind spot detection look just like the 2021-2022 ones (in the photos)... but their search engine which usually shows only compatible parts only shows 21 and 22 results.

Not a single drivers heated blind spot detection mirror in black on site for a 2021.

There are plenty in black if I manually change year to 2018.

So does anyone know what the actual difference in 2016-2020 mirrors and 2021 to 2022 mirrors are?

Thanks,
Paul