Thank you for the feedback!
I did consider changing the name, but that's a lot harder than it seems (have to rebrand, change domain, probably lose all SEO, etc.). So far I didn't encounter any issues with ad-blockers (for users userTrack is self-hosted, so you can host it on any domain, so name doesn't matter there). I also rank highly for terms like "user tracking" which I think is good, as people would stumble upon a self-hosted alternative instead of some 3rd party platform like Google Analytics. In the end, it does track stats and users on your website, but if I were to start again I would indeed choose a friendlier name.
I am aware of that visual bug, I do have a better solution in mind for it, unforunately I have to write hacky code to make it work (due to the limitations of the material-ui library used). I think that's a very minor issue though, and there are more important issues I want to fix before it, especially that it's not an easy fix.