Setting up a hotspot on a Google Pixel or other Android phone is straightforward: Google Help Share a mobile connection by tethering or hotspot on Pixel
Go to Settings > Network & internet > Hotspot & tethering > Wi-Fi hotspot to toggle it on.
While there isn't a single standalone app titled "Google Hotspot" to download, the functionality is built directly into the Android operating system and Google’s ecosystem of apps. To share your internet connection from a Google Pixel or Android device, you don't need to download anything new; you simply activate the native "Wi-Fi Hotspot" feature found in your phone's settings.
If you are looking to manage a Google Nest or Google Wifi mesh network, you should download the Google Home app, which has completely replaced the now-discontinued Google Wifi app.
For users on Google's own network, you can use the Google Fi app to track your hotspot data usage and manage tethered devices. Setting Up Your Google Device as a Hotspot
Since the hotspot is a built-in feature rather than a downloadable app, you can access it through these primary methods: