Missing CC 2018 installer in Creative Cloud Client 5.0.0.354 under Win10

Hello everybody,

after upgrading to Windows 10, the CC2018 versions are no longer available in the current Creative Cloud Desktop Client (Ver. 5.0.0.354).

Example InDesign: there only V15 (CC2020) and V14 (CC2019) are offered. The link "Show more" takes you to a page "Download legacy versions of Creative Cloud apps", which only offers CC2017 and some CC2015 applications.

We found a website for the offline installers of the CC2018 basic versions. Updating to the latest CC2018 update is not possible.
https://helpx.adobe.com/download-install/kb/creative-cloud-apps-download.html#creative-cloud-2018-apps

Why is CC2018 no longer offered through the Creative Cloud Client? How do I get the latest CC2018 version?

Thanks for your feedback.