I was told to sit on my hands. LOL I'm new to hatchig geese as well. Just hatched my firdst yeasterday and still have 3 more that are internally pipped x 3 days with no external pip. This goose egg hatching is stressfull! Mine are on day 31.
Don't do anything. The chick will either hatch or it won't. It's a sad truth, but when humans get involved, it's riskier than just letting it happen naturally. You could tear the chick's stomach open and it would live a short miserable life. Just let things take course. You've waited this long, a few more days couldn't hurt.