We have introducted many changes related to how the platforms are handled on GG.deals. Most notably, the ability to set a default platform (All, PC, Xbox, PlayStation and Nintendo Switch) and only see the offers related to that platform.
You can read all about today's changes in this article: https://gg.deals/announcement/one-price-tracker-to-rule-them-all-find-the-best-pc-console-deals-with-one-click/