Why would it save any RAM if you already have a browser open where it just eats the cost of an extra tab? I haven't used it but I'm assuming it's electron or similar and not actually "native"
I was essentially installing the web app as a PWA. Why? This allows me to set a deterministic keyboard shortcut to open gemini, in my case super + C, as if it were a native app. Downside is that it eats some ram. I haven’t benchmarked this I have no idea how heavy on ram this really is. FWIW I’m fine spending ram on this if it improves my workflow, which it does.