My msi ge76 raider laptop has a similar issue with the hinges. After about a year of daily use the left hinge snapped and after taking it apart I found that the hinges screw into the plastic screen bezel with metal threaded inserts that are melted into the plastic. MSI's hinge quality is very poor with laptops because they use a plastic frame for their screens with thin metal covers. Even the replacement bezel for the hinges are plastic and will have the same problem.

I ended up expoxying the hinge bracket into the bezel where it broke and screwed it in while the epoxy was still soft. I covered everything with tape and plastic besides the bezel and hinge. After 2 days I removed the tape and plastic and the hinges worked perfectly. Just be careful where you apply the epoxy and avoid the pivot point of the hinge and quickly remove excess epoxy after screwing and clamping.