The original GLUT has been abandoned two decades ago, it seems. Freeglut, a drop in replacement still seems to get regular updates and releases.
Alternatives that come to my mind are GLFW and SDL and you can also grab ImGUI for a nice, easy to use UI library that covers simpler use cases very well. They all deviate from how you use GLUT, but they aren't substantially harder to use.
Alternatives that come to my mind are GLFW and SDL and you can also grab ImGUI for a nice, easy to use UI library that covers simpler use cases very well. They all deviate from how you use GLUT, but they aren't substantially harder to use.