If Schedule keeps showing you 'All' locations and you have to re-select your primary site every time, you can set your default location in your team settings.
This will ensure that Schedule loads with your preferred site already selected.
Navigation: Settings > Team
Steps to Set Your Default Location
Scroll to the right on the required Team member and select the ⚙️ icon
Choose their Default Location via the drop-down menu
Save Your Changes by clicking the Update button
Now every time a person logs in to the platform, their default location will load up, the same for navigating around the platform, the default location remains in place until they change locations (Orange button top left of the main left hand navigation.
Tip: If you have permission to change team settings, this change will only affect your individual view. Each team member must set their own default location if they want Schedule to remember their default location.