"Try the New Desktop" icon persists even after uninstalling the add-on (New Desktop for MATLAB (Beta))

I recently installed the New Desktop for MATLAB from MATLAB FEX (by reading this article of Matlab Blog) to enable dark mode. However, I didn't prefer it, so I uninstalled it through Add-Ons > Manage Add-Ons. While it's no longer listed in my add-ons, the "Try the New Desktop" icon remains at the top of my MATLAB environment. I've even restarted my computer, but the icon persists.

Could you please advise on how to remove this icon permanently?

Answer 1

[the cyclist]

That icon is not related to your use of the beta release from the FEX. The New Desktop is always an option now (presumably until such a time as the "New Desktop" becomes simply "The Desktop"). I'm pretty sure there is no way to remove that icon.