Version 188.8.131.52 on Windows 10
Comment - I also have a MacOS version and there it works as expected.
When choosing “format” -> “paragraph” -> “writing direction” -> “right to left” the cursor will move to the right of the screen, but the paragraph align will remain “Align Left” (it should be “Align Right”, like it does on MacOS).
While it generally works (I can write right to left), I have issues when trying to open a file created in Windows with MacOS - the formatting is broken. I assume it will also cause issues with exporting to document types and maybe in other areas.