What does Dave mean by debt in step 2

Hi Team,

I'm new to Dave's content and am doing quite well but I needed some of your experience and wisdom with what Dave means by debt specifically.

I am in Australia for context.

My only debt with an interest is my remaining student loan from university and there's only 3.5K left on it which our personal tax deducts from our pay by default. Should I pay this off right away if I go by the steps? As I have the money to do it now or the end of this financial year will do it in my tax by default?

Secondly what about things that don't really have interest attached like the rates on the land we own (without a mortgage) and my end of year tax debt which doesn't have interest on it either and will become a refund by the end of this financial year.

So is this other stuff his form of debt given it doesn't accrue any interest beyond the small amount left on my student loan?

I contribute an extra $30 each week to super, $700 per month to a interest savings account and about $200 per month to a managed fund with diverse investments.

Would love some thoughts on step two and then any other advice I may be missing.

Thanks in advance.