The following shows the way to download or install apps for first time users. I’m not a first time user but I installed it this way. Is that fine?
Sign in to download Microsoft 365 or Office 2024 on a PC
Go to m365.cloud.microsoft/apps and if you're not already signed in, select Sign in.
Sign in with the account you associated with this version of Microsoft 365. This account can be a Microsoft account, or a work or school account. I forgot the account I use with Office
After signing in, follow the steps that match the type of account you signed in with.
You signed in with a Microsoft account 
From the Microsoft 365__Apps__ page select Install apps.

Select Install (or depending on your version, Install apps>).
You signed in with a work or school account 
From the home page select Install apps. (Or, you might need to select Apps from the left navigation pane, and then select Install apps.)

Select Microsoft 365 apps to begin the installation.