Core of the product hasn't seen any noticeable features in a while.
1PasswordX was launched without the feature set of the desktop version. Dumb stuff that hasn't been fixed in forever like not being able to delete a single item from the trash, password formulae are rigid - words with no digits or symbols or random mess of all characters, no TouchID/FaceID, Apple Watch unlock support, can't selectively sync a single vault to say my work laptop.
There should be some open standard data-attribute on password fields so the app can read in the required formula to create the perfect password without me fiddling the settings.