You need a tutorial video to understand how to close a pane, and even then it's hard. That has got nothing to do with 3D modeling being hard. It could've been a word processor and it would still be terrible.
And yes, window panes are very much a standardized UI part which has a completely non-standard interaction design in Blender. For no reason.
Edit: Before you downvote this, download Blender and try to close a pane. Just try it!
No, Blender is not bad, it's terrible.
You need a tutorial video to understand how to close a pane, and even then it's hard. That has got nothing to do with 3D modeling being hard. It could've been a word processor and it would still be terrible.
And yes, window panes are very much a standardized UI part which has a completely non-standard interaction design in Blender. For no reason.
Edit: Before you downvote this, download Blender and try to close a pane. Just try it!