Hi Erdem,
Do you mean you can go to the software>Office section, but cannot see the Outlook for Mac section to download it?
If so, could you capture a screenshot for me to identify it? To upload image, please click use rich formatting when replying to the post, then insert image.
If it is the normal scenario from your side, the issue may be related to your account. I will investigate the issue further.
Thanks,
Iris He