ORB-SLAM3 is the first real-time SLAM library able to perform Visual, Visual-Inertial and Multi-Map SLAM with monocular, stereo and RGB-D cameras

https://github.com/UZ-SLAMLab/ORB_SLAM3

Not neccesarily,Other options like photogrammetry, LiDAR, or structured light scanners can do the job too. Each method has its strengths, like photogrammetry for detailed textures or LiDAR for super precise large-scale models. It all comes down to what your project needs and what tools you have.