Thanks for the feedback! Corrected the Kobo Forma screen type just now. Will look into uniformly naming the rest of the e-readers with 'Mobius' screens. When entering data, I have mostly just entered whatever the manufacturer listed it as, so that's probably why I've ended up with multiple names for the same thing.
If I understand correctly, Mobius is always a flexible screen? Because that'll mean I can remove 'Flexible' from the naming scheme, even though manufacturers often seem to add that.
However, what I don't really understand is, is there such a thing as a 'Mobius' screen without it also being 'Carta'? E Ink themselves just mention E Ink Mobius here:
https://www.eink.com/brand/detail/Mobius without mentioning Carta anywhere on that page, and they've got another page for 'Carta' which makes it seem like that's an entirely separate screen type. So that's a bit confusing to me.