You could try copilot which is very similar on your device. I think it is very good ans gives decent answers. Make sure to enable chat gtp-4 after install. There is a little slider bar to turn on.
Before Google released the app, I just had bard/Gemini as an app on my home screen. Just go to the website, and then click on the options menu (in Chrome when you click the 3 dots, you will an option for add to homescreen) this will add it to your phone like a normal app, you can then launch it anytime
