First and most important thing, open the viewer and move to a place where you wish to create a snapshot. You can change the viewer's settings to enhance your point cloud, you will find the processes to do so in other articles. Once you are happy with your position and point cloud and or models. Go to the left menu, open the camera options and click the 4th option.
The export menu has opened, select the quality of your image, 720p, 1080p, 4k or custom.
Then click the grey button to export your image.
You will find your PNG in your computers downloads with the following name {project name}_{resolution}.jpg
If you have any problem or difficulties, please do not hesitate to contact the platform's team.