Dash to Panel, an icon taskbar for Gnome Shell, has been updated to version 43, bringing initial support for GNOME 40.
The Gnome Shell Dash to Panel extension combines the Dash with the top Gnome panel. The result is a single panel that provides an icon taskbar, the tray, system menu, and date / time indicator. This is similar to the KDE Plasma and Windows 7 (and newer) taskbar. It supports both X11 and Wayland.
It's worth noting that you shouldn't confuse Dash to Panel with the somewhat similar Dash to Dock extension (which has not yet had a release supporting GNOME 40, but this is under development), from which the Ubuntu Dock was forked.