Only problem with Notion is that the conversion from Evernote is not flawless yet, the Notion-team is still working on a better solution (tables, images en attachments don't convert very well at the moment).
As for your comment on iOS; you're clearly not aware of the exact problem on android. Offcourse, swiping to intentionally close a function is found in many apps.
I've just tested Evernote on an iOS device and it works better then on android. If you intentionally swipe to close, the note closes, although it's still a bit to sensitive.
The problem on android is that the swiping is set sò sensitive, that just one micrometer / pixel of movement to the right causes closure of the note. Therefore constant unintentional closure happens.
Again; this is not a feature. It's a bug.
Well maybe it was intended as a feature, but it's set way to sensitive.
It really is very unprofessional that a bug like this makes its way into a final version.