I had an epigastic hernia done around a year ago and used to also train essentially in the exact same way as you on something resembling the stronglifts 5X5 thing. I was squatting 100kg when I got the hernia, I think shifting camera gear in an airport.
I found that after 6 weeks I was able to return to my cameraman job, but often had a feeling of pulling or itching round the area and sometimes had some pain. I didn’t do any box shifting or anything like that for something like 10/12 weeks, and then slowly returned to body weight squats and the like after 3/4 months or so.
It has taken me up till now to get back to lifting the same kind of weights as I was before, and a heavy ab session still hurts me quite a lot for a few days afterwards.
It is a very mixed bag from my understanding of the subject, and different people respond completely differently to the surgery and mesh.