I too request the vertical writing feature.
I know that affinity sold a few times at a discount during v1, and I think it got more users in Japan.
After a while, the lack of vertical writing functionality in affinity became a topic of discussion, and it became widely known in the Japanese community that affinity could not be used for work.
Now that v2 has been released, affinity has become a hot topic in the Japanese community again.
However, many early adopter users were disappointed to learn that V2 does not have the vertical writing function.
Many Japanese are discouraged and hesitant to purchase.
I know it is difficult for a development team that is not from the CJKV culture to implement a vertical writing function, but please consider it.