In the past I tried Steam/UBI/EA plugins but now on a clean machine and clean install under "Owned games" the Steam/UBI/EA games are still being shown (titles and thumbnails)

I can click a none-GOG title and it will show the game page but I can not install which makes sense because the login data is (and plugins) isn't present.

Does GOG save user's none-gog-game titles (or title id's) on it's own servers?

To be clear:
No plugin is installed and no integration is active.

Is there any way to remedy this (meaning: only show GOG titles)