Are you familiar with any other 3D modelling software? If not it's not entirely fair to say Blender is overcomplicated, 3D modelling itself is a complicated fie

Are you familiar with any other 3D modelling software? If not it's not entirely fair to say Blender is overcomplicated, 3D modelling itself is a complicated field and Blender is like a swissknife, you can learn only the features you intend to use. Hard surface modelling, basic scene setup, lightning and you're already at a level where you can enjoy the process. Want more? Procedural, non-destructive modelling, sculpting, VFX, compositing, it even has a video editor built in (though most people just use Davinci Resolve instead). I think Blender is as complicated as you choose it to be, like Math, Physics or any other non trivial field.