The process is almost the same as on the Raspberry Pi, it's just a container to start.
Install Docker Desktop
You first need to install Docker Desktop.
Follow the instructions on Docker website.
Docker Desktop should install Kitematic, a Docker GUI. If it doesn't, you can install get it on Kitematic website.
You need to start Kitematic first.
Then, search for "gladysassistant":
Select the tag "4.0.0-beta-amd64":
Click on "Create" to start a new container:
Then open in your browser the address showed by Docker (here, "http://localhost:32768")