Q-Jesko wrote:
when I chose to install the app a pop up appears saying it can’t be installed on macintosh HD because macOS version 12 or later is required.
That MacBook Pro originally shipped with Catalina, so could be running Catalina or Big Sur now. As long as you are using either, trying to install an application that requires Monterey or later would result in the error. However, your Mac is compatible with Monterey, Ventura, and Sonoma. You can upgrade free of charge.
If you want the Sonoma upgrade, you should be able to download it from System Settings > Software Update – or from the App Store. If you would rather stay back on Monterey or Ventura, you can get them using the App Store links in this Support article:
How to download and install macOS - Apple Support
I would suggest backing up your Mac, then going for Ventura or Sonoma. Once you have upgraded macOS, you can retry installing the application in question.