After installing SOLIDWORKS 2020 SP 3 you might notice a change in a menu. In all versions pre 2020 SP3, the "Help" menu was located next to the "Tools menu". However, in 2020 SP3 this menu has been moved to the right side of the screen.
Another change in the menu is the option to move the quick access toolbar. Usually it is placed in the "menu bar", but now you can move it to the command manager. To change it, simply right click on the toolbar and select customize. In the menu "Quick Access Tools" you now have the option to change the location. The quick access tool is now available on all tabs.