Open Gnome tweaks app or extension app , If not installed then
sudo apt install gnome-tweaks
Go to extensions tab
Simply turn off the arc menu first , You will see that activities overview is back then click on settings button and change the position to wherever you prefer then turn it on
As I can see in comments you are not able to install and enable dash to dock , Here are steps to install it
Installation from source
The extension can be installed directly from source, either for the convenience of using git or to test the latest development version. Clone the desired branch with git
git clone https://github.com/micheleg/dash-to-dock.git
or download the branch from github. The master branch usually target the latest GNOME Shell version. There are gnome-3.x branch with the latest code for older versions. In case you are running a development version ( that is an even version), although the extension is not guaranteed to work, you should look for a development branch and manually add your version in the metadata.json. Sometimes the previous stable version works with minor bugs also in the development GNOME Shell.
A simple Makefile is included. Run
make
make install
to install the extension in your home directory. A Shell reload is required Alt+F2 r Enter and the extension has to be enabled with gnome-tweak-tool or with dconf.
As an alternative the zip archive can be generated with
make
make zip-file
Then follow the instructions above to install the zip-archive.
This will help in installing the extension.
Then open gnome extensions app or gnome tweaks app or just run
sudo apt install gnome-tweaks
gnome-tweaks
Go to extensions > dash to dock > ON
Then turn of the Ubuntu dock extension.
Then just configure it by right clicking on the application launcher button > Dash to dock settings .
You can do any configurations you want and like.
After just messing it with for like 5mins only you would be a professional dash to dock configurer .
Then you can do the things with arc menu as you like
