Since screens have become wider, more app designs are making use of side panels, side menus, etc. on both the left and right, since it’s better layout for modern screens compared to top menus, and buttons at the top or bottom of a window from the old 4:3 ratio days. I like having as much vertical space as possible, so it’s a positive change overall. I’d like to see browsers change from tabs at the top to a scrolling panel on the left side with all open pages, that could toggle between pages, like different channels in a chat app.
I also think NetSuite could benefit from that. It’s not uncommon to have so many menus at the top that they don’t all fit, and you have to use a drop down to access the last few anyway, so why not put them in a side panel?