The equivalent of the Google Store would be the Apple Store . It's an Apple-owned store that makes and sells products on it. Also in some cities of major countries, Apple Store headquarters show and sell their products there.
Unlike the Apple Store, the Google Store is just an online store. There is no "traditional" Google Store in the real world. You can find Google or 'pop-up shops' in stores like Best Buy, but that's all about Google stores.
One exception to the "real products" rule in the Google Store is subscriptions. You can purchase services like Google One, Stadia Pro, and YouTube Premium. These are the registrations that are usually associated with the actual product.
To summarize: Google Store is an online store that sells devices & accessories made by Google.