Meaningful Vertical Reader mode even for latin-alphabet based languages
In the launch video for Vivaldi 1.14 was presented a new Vertical Reader mode for Japanese, Chinese, etc. But when the text contained latin letters, Vivaldi rotated them in readable and meaningful way (even for us).
Pitty that it can't rotate this way even on pure latin alphabet sites and the Vertical Mode is totally unreadable and useless there.
It could be useful e.g. with better monitors which contains pivot allowing you physically rotate the screen by 90° and at the same time don't want to touch the system settings to rotate the view.