Not that anyone

[Maybo]

She’s dead. Car wreck a couple years back. Pretty sure she was drunk. Not that anyone missed her. She was a weird one.

Source: Once Upon a Time series

Does “Not that anyone missed her” mean “there was not a single person that missed her”?
The idea of the 'not that' sentence is to say that the verb 'missed' is not meant to contrast with 'dead’. Am I right?

 

[dunchee]

Not Definition & Meaning | Britannica Dictionary

NOT meaning: 1 : used to form the negative of modal verbs (such as “should” and “could”) and auxiliary verbs (such as “do” and “have”); 2 : used before a verb or clause to make it negative or give it an opposite meaning

www.britannica.com

not that
— used to say that something said before is not important

• I tried to help, not that it mattered. [=but it did not matter]

 

[emsr2d2]

Yes, effectively it means that no one missed her even though she was dead. Under normal circumstances, when someone dies, at least a few people miss the deceased person once they're gone. The suggestion here is that she was weird so she had no friends to miss her.