I had the same issue. After installing with conda install anaconda-navigator run it from terminal with anaconda-navigator and lock it to the  Dock (right click -> options -> keep in dock)
I installed Anaconda, but it did not include the GUI app, Anaconda-Navigator app in the Applications folder. What do I need to do to get the GUI app?
Details:
Computer: 2021 14-inch MacBook Pro, M1 Max
OS: macOS Monterey 12.5
A month ago, I had the full Intel version of Anaconda, including Anaconda-Navigator, running fine.
I decided I wanted the M1 version, so I uninstalled it using the method detailed on the Anaconda website (anaconda-clean), rm -rf ~/opt/anaconda3, and remove conda section of .zshrc. I also deleted Anaconda-Navigator from the Applications folder and removed all ~/Library/Receipts, and restarted the laptop.
I the used the GUI installer for the M1 version, which set up conda and seemingly the complete ~/anaconda3 folder, but it didn't install the Anaconda-Navigator app.
I repeated the full uninstall and used the shell installer, getting the same result - no Anaconda-Navigator.
Any suggestions on how I can get Anaconda-Navigator GUI?
Thanks!!
Mike
Anaconda-Navigator.app missing after installation on M1 macOS Monterey