What analytics tools do you use to analyze events in your app?

Hello! My app is New Tab Studio https://chrome.google.com/webstore/detail/new-tab-studio-countdown/epngggilgnflanfabeldfpbgponcgpgl.

I use google analytics and have a ton of events there from users (they can add different widgets, style them, change backgrounds in different ways).
But the way to analyze which parts of the application have troubles is quite painful. I need to go to cohort analysis and iterate over all step-by-step events to find which of them has small retention. Analyzing chains of events is almost impossible

Also, For example I have 2 events: 1. add a widget A, 2. remove the widget B.
I cannot count how many users have an active widget A
I can create an audience with ADD event and without REMOVE, but if he added 2 widgets and removed 1 the stat will be wrong

Are there any tools that can help me with my issues?
Maybe firebase can do this?