Even knowing that, I do understand their apprehension. GrapheneOS doesn’t really add any QOL features that are not found in AOSP; just security/privacy features. So if that commenter’s last foldable was only usable to them due to Samsung’s QOL features, I presume they wouldn’t find GrapheneOS on a foldable any more usable than AOSP on a foldable.
Even knowing that, I do understand their apprehension. GrapheneOS doesn’t really add any QOL features that are not found in AOSP; just security/privacy features. So if that commenter’s last foldable was only usable to them due to Samsung’s QOL features, I presume they wouldn’t find GrapheneOS on a foldable any more usable than AOSP on a foldable.