Computer Science A-Level for Data Science?

Check the entry requirements for courses of interest, if comp sci is required then contact them and ask if they will accept AS level comp sci as your school doesnt offer the full a level. If they do not then consider self-studying the A2 content independently during year 13 or on a gap year to take the exam privately.

I don’t need compsci in terms of university,
I’m mainly wondering if not knowing the A-level content will be detrimental to my experience

If the a level is not required then any needed content will be taught during the course 🙂