iPad for Uni Notes – 11" or 13"? + Study Tips Wanted

Hi all,
I’m preparing to start university later this year and I’ve been thinking about switching from paper notes to using an iPad, since I struggle with keeping papers organised and things can get messy fast.
I’m considering getting either the 11-inch or 13-inch iPad (for note-taking, lectures, reading, etc.), but I’m not sure which size is more comfortable or practical for uni use.
If you're a student who uses an iPad for studying:
Which size do you use?
Do you find it manageable in lectures or libraries?
Any apps or study tips you’d recommend?
Do you ever miss paper?
I’d really appreciate different views before I buy one. Thanks in advance!

It's a very subjective thing- some people find writing on a tablet screen easy to adapt to, while for others the lack of "friction" and tactility of traditional writing makes it very difficult to get comfortable writing on a glass screen. I would visit your local Apple store and try one of the demo iPads to see how you find it- don't just scribble your name and think "good enough", write out a few sentences and see you get on with the feel of writing, managing straight lines, etc.
As for screen size, the 2" size difference may not sound like much but because it's a diagonal measurement, it means the 13" screen is 40% larger, which is significant and crucially matches the size of an A4 sheet of paper. However a base iPad with 11" screen is under £350, while the cheapest 13" model is the iPad Air at £799. So you would be paying over double for a larger screen and some extra power and features that really won't matter for a note taking device.
If you decide to get an iPad for note taking and you're willing to consider used options, in would pick up an older generation 13"Air or Pro models for around £500- you can find models with the M1 or M2 processors that will get you the big screen that's better for writing and still be blisteringly fast while keeping the price down. If you want to stick exclusively to buying a new iPad from a shop, I would just get the base iPad for £329, paying £800 just for a larger screen in a device that's otherwise going to be almost identical in its functionality is too steep to justify, unless you are absolutely flush with cash and don't have any other purchases that could make student life easier.

So is the 13" almost always better for not taking? I went to a normal store and they had a mini that's also 11 inch and I found it almost large enough for note taking even in landscape mode - 13" felt too big. Which is why I'm asking, in practice, for people used to taking notes digitally, is 13 the only way to go or could an 11 work? Especially after transitioning from paper? (I'm going to be changing my note taking style either way)
But thanks for all the tips and new insights into how to decide, I never thought of some of these!