Anyone ever dealt with Diastasis Recti?

So, I'm doing leg lifts and I notice something is amiss.

My kids moved out and while I've done chest/arm workouts for years, I now have the room and time to do more.

I noticed that there is a bulge in the middle of my stomach. I had a tiny hernia a decade ago and had it operated on and fixed. This is different. The bulge is about 3 inches long and goes up from just above my belly button to below my sternum.

Seems like this isn't a big deal and that I might be able to repair it through exercise, but I figured I'd ask my GLP family if they've ever gone through it and if they solved it through exercise or if surgery is the way to go.