Hi there,
i had a look around to see if thats something that Site Kit could do directly… and unfortunately it does not and it seems they are unlikely to add:
https://github.com/google/site-kit-wp/issues/785
It also seems to be lacking any public API that you could get the data yourself…. good old Google 🙂
So you would need a separate plugin.
I did find this one which looks to just add front end anayltics and nothing more:
https://wordpress.org/plugins/frontend-analytics/
Other plugins would be a replacement to Site Kit eg.
https://en-gb.wordpress.org/plugins/wp-analytify/
Or some SEO plugins like RankMath have:
https://rankmath.com/kb/analytics-stats-bar/
Hope that helps!