"+Show more” option should be used as per design principles

"+Show more” option - The plus sign suggests that the additional description will show on the current page i.e. expand the current description dynamically. However in GCP, it redirects to another page

I suggest you use different sign to notify of opening the resource on another page - the UX design principles describe a sign which is used commonly for that purpose.

User may have a confusion and have different expectation of "Show more" button