Reddit reviews Kyokuto F.O.B COOP W Ring Notebook - B5 - Dot Grid - Silver [Office Product]

Except for the thickness and pockets, the dot grid Kyokuto F.O.B COOP fits most of the criteria and is what I've used through most of uni. I also love the Soft Ring 5mm dot grid by Kokuyo w/ clear cover.
My workhorses though are the 600 pg 4mm grid softcover by Miquelrius for work and a cheap A6 hardcover, Leuchtturm knockoff from Daiso for on the go notes.

Spiral notebook like this for lecture or book notes. I really like this size because it’s not too big and the spiral makes it even better for saving space on your desk. This comes in handy when you have a big text book spread out on your desk.

Loose leaf grid or dot paper for assignments. But I used blank paper most of the time when I was doing proof based courses for my math degree.

It could be a "Dotted Bullet" notebook,
I like it for the reason thatm you can write vertical and horizontal- both ways having a guiding line.
For stadistics and math, is very easy to make graphs and charts with the correct measure and is very clean and fresh

Something like this:
https://www.amazon.com/Kyokuto-F-COOP-Ring-Notebook/dp/B00777RMM8