I dug through the code and turns out the post read table does store when its read (with number of comments when it was read stored in a person post aggregates table), it just only stores it for people from your instance so I cant get accurate numbers from all of lemmy (and why it seemed like there was a low amount)
Do posts get marked as read when you read the comments? There’s the x new comments feature, so something must be storing that timestamp.
I dug through the code and turns out the post read table does store when its read (with number of comments when it was read stored in a person post aggregates table), it just only stores it for people from your instance so I cant get accurate numbers from all of lemmy (and why it seemed like there was a low amount)