I've started rolling out new features to a site using Netlify's branch split testing so I can say ex. 10% of users gets a branch with a specific UI change to see if it produces measurably different results. I have google analytics events set up to track some useful metrics already.
How can I compare the events in branch A with branch B in google analytics? I think there are two parts here: how to change the analytics code to identify sessions on branch A vs branch B, and also where to create a view in google analytics that I can compare events from sessions in A to sessions in B.
I'm happy with the tools I'm using so I'd like to avoid cluttering my page with yet another tracking script from a single-purpose A/B test provider when I'm pretty sure my existing tools can do this, I just don't know how.