Firebase storage path to store images of a social post

I'm currently working on a social platform where users create posts similar to Facebook or Linkedin. So what I'm trying to achieve is, whenever user create a post they may upload images as part of the post and I want to store them in firebase storage but what I'm not clear is, what type of storage path I should choose from one of the below for uploading images.

Which option is right for user posts from the below?

1. Create unique storage path for every post of a user and upload respective post images there
2. Create unique storage path for every user and upload all user posts images there
3. Create a generic storage path for all users and upload all users posts images there

I'm using Firebase storage and database for this app.

There is no singular correct or best approach here, it all depends on your app's needs and use-cases.

I typically would use a folder structure with /images/$uid/$postid, for example because it makes it easy for me to delete all images for a specific user, as well as all images for a specific post. But as you can see from that description, that calls out two specific use-cases that might or might not be relevant for your app.