It's maybe more mental than physical, once we accept a thing that we don't much like, but also know it isn't the end of the world.
One mental approach is to imagine all those things and people you love not being there, the things you have worked to achieve, the stuff that makes you love your life. It's kind of like a reality check - if those other things were challenged we would forget a wobbly belly in a split second. A sort of reshuffling of our priorities.
Women are socialised to overthink their appearance to the point of distraction. We are taught to measure it as a value of our worth. Of course we all know this isn't how life actually works and body worrying is often a distraction from other issues which are maybe harder to face straight on.
I won't go into detail but a woman I seriously admire, who has a wonderful life and sense of self/meaning really brought this home to me last week. She is older and had wobbly arms, a belly, frizzy hair. Yet she SHINES like fuck, her joy and acceptance of life really knocks me over. I really, really want this for myself, and it sort of makes you realise that the odd wobbly bit is so ultimately insignificant in the greater scheme of life.
It's a bonus to love out bodies completely, we live in a very picky, profit focused world where everything is set up to magnify our 'flaws', but we have to make a decision about how much of that shit we are willing to let in. If you are healthy and otherwise happy, give the belly pooch a pet name and take it out with you with pride:) Or try to get rid of it, it's your call, you own no one a flatter stomach.