Can confirm above. IT degrees don't assume anything - all you need is a brain and to be ok (e.g. Further level) at maths. It is a lot more fast paced than high school so don't expect to be comfortable for very long, but it will be accessible.
I did my IT degree at a different uni but the content is quite similar.
Also, if anyone has completed or is currently undertaking the course, how much work did you put in? Do grades/ranking matter? What's the level of difficulty for employment after graduating?
It is a heavier time commitment than say an Education course (only one I can compare to since that's the only other course i've done), but it's manageable. You could get 3-4 days a week if you're lucky but most likely it will be the full five depending on subjects. In majority of situations grades are based on merit (e.g. what you achieve is what you get) but I have known some lecturers to moderate...
I also would say that employability is mixed depending on your specialism. Entry level roles are hard to crack into unless it's an emerging area e.g. cybersec or data science but with persistence it is possible. The problem here is that the IT industry is an area that employs a lot of overseas/visa workers and it is REALLY easy to outsource work elsewhere.
While I said grades matter, the most critical aspect of IT is networking and opportunities. If there's a chance to do an internship, industry project etc, do it. This will hold significant weight, much more so than just grades alone.