Google recently released a new mesh router known as Nest Wifi. The updated and rebranded Google Wifi brought many improvements, such as faster processing power and an increased level of wireless security called WPA3. But while it's not enabled by default, you can still get the new WPA3 security on your original Google Wifi.
Google is known for merging older products into a new one's ecosystem for ease of use. The transition can take time, and that's the case with the old Google Wifi system now that Nest Wifi is out. Google is working on phasing out the dedicated Google Wifi app in favor of using the Google Home app for all your IoT needs.
Although not quite as common today with the always-connected world we live in, you still might be having bandwidth wars in your home right now. If the internet connection in your area is mediocre, you know the feeling well. Google Stadia recommends having a 25 Mbps connection for playing in 4K, so you can expect to need at least that much to maintain a smooth, high-quality gaming session.