The way Office is installed on Windows computers has changed. In the past it was typical to install Office for all users of a computer, but an on-deman installer is now used.
The consequence of this change is that you will usually need to install office the first time you start using a new laptop.
To install Office, start by logging into this URL and you should see the following button in the top-right of your browser:
Once you click the button you will see a list of the software available, including Microsoft 365 apps and once clicked, it will prompt you to download the Office installer and depending on the web browser you are using, you should see the downloaded file in the top-right (the screenshot below shows this for Chrome):
Once you click on OfficeSetup.exe, the installation will start and you should see a status box like that below:
The time it takes to complete will depend on your Internet connection, but typically it will take from 5 minutes.
Once complete, you will be able to launch Office apps like Outlook, Word and Excel - note the first time you load the app, it will ask you to log in with your 365 account.