It is the web app, which is running in the browser, that sends the notifications through the browser to the OS (Windows, Android, macOS…). You can only get notifications if the browser is open with a Supertext.UI page, which means any page under https://www.supertext.ch/i.
For example:
https://www.supertext.ch/instantTranslation/customer/start
Making sure notifications are being displayed
- Supertext.UI page is open in the browser
- The site (https://www.supertext.ch/de/com/i) must have the permission to show notifications. Check your browser settings whether this is the case. In Edge:


In Chrome:

Or go to Settings, Privacy and security, Site Settings, Notifications and allow notifications like this:

And for Firefox: ☰ > ⛭ Options > Privacy & Security > Permissions > Notifications > Settings
- Notifications in Windows must be ON

in general

- Focus assist in Windows must be off

OR it must be set to priority only and your browser must be in the priority list

