The standard panel menu looks quite convenient for regular Gnome users. But what should those who switched to Linux from Mac OS or use two systems in parallel do? - An excellent solution would be to install an extension with an updated menu. "Big Sur Menu" copies the design of the Apple interface. Translucent, with rounded corners and branded keyboard icons (the "command" button) are present in this author's revision. It remains to put a custom theme and replace the wallpaper, then the visual style will be almost indistinguishable.
Installation
For manual installation, unpack the downloaded archive and move it to:
/.local/share/gnome-shell/extensions/