Right, I expect many will disagree with me. I used to prune figs in the summer but they bled so much so now I do this in late December early January during our very short dormant season. It works for me. I try to create a bushy plant with lots of leaf axils where the fruit forms. For me, you can prune as hard as you like. A bushy fig is easier to protect too....fleece in the spring over the embryonic figs. Im also growing one in a pot...a cutting from 2 years ago.....and this will go in the GH over winter. I will also prune this next month to create a compact plant with lots of spurs.
Havimg said all that a near neighbour grows a huge fig and prunes only to hack off branches that get in his way. Figs galore for him but he cannot reach them.
A friemd of mine also grows a fig and it simply grew and did not fruit. I pruned last winter. Tiny "embryonic" fruits can be seen amd I hope for figs next year.
I experimemt with my pruning somewhat usIng some logic based on how I see plamts flower amd fruit. Always prepared to hear how others do these things. We are always learning.