Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
I understand your concern as there issues with installing Outlook on your Windows device.
You can try installing new Outlook on below link. [...]
Apparently you do not fully understand what you read.
The Outlook desktop app is NOT installing when installing Office 365 or Office 2021. The new Outlook is not what we need to use as it lacks lots of features.