How much data volume is enough?

I’m planning to start working using 5g flat only for a few months and I’m wondering how much data volume will be enough for regular office work like teams calls, office work, little bit coding and so on. I understand that the answer depends highly on the tasks that need to be done, but what could be a good average? 100gb, 200gb? I know that there are unlimited flats, but in my country they are often under fair-use policy and limit to a certain amount per month and day.