We are in the process of updating the current course, however the current course is still a valuable resource for passing the exam. The biggest changes will be new services and requirements announced in the past year such as Data Loss Prevention (DLP), GDRP, etc. My advice until we have the new course is to gain a deep understanding of how GCP works (don't use practice questions as a crutch), which the existing course will cover.
I’d love to endorse/recommend you on LinkedIn if you want. All you have to do is add me as a connection. Once you do that, post a picture of your cert in your feed and reference me within the original post. Once I see this, I’ll be able to recommend you for your hard work on your LinkedIn profile.