Capacitor Google fit plugin

I’m trying to understand how the capacitor plugin works to link my ionic app with Google fit. I’d like to know if there’s a test API on the Google side, and if the following plugin is the right one to use?
https://github.com/perfood/capacitor-google-fit
I’ve come across articles saying that this plugin is no longer functional with the version of ionic 6 and above, so I’d like to know your opinion. And to know if there is a better solution to implement what I want.

Thanks in advance