I want to change display oreintation to portrait and put laptop sideways so I can view more text, similar to how you will hold a book with keybord on left and screen on right, is it safe to use laptop like this for several hours? I am using lenovo thinkpad.
This would b the main risk. A conventional hard drive doesn’t like it if you shake it about when it’s operating. Make sure you have an ssd and it should be fine