Long press on app icon. Rename. Maybe your launcher does not have that.
That's called a workaround, it is not considered a fix. But I never had that issue to begin with. Can you edit this without pushing your own commit and rebuilding the app entirely?
And that first screen. You see that a split second when the app starts, if something like this is a problem for you to use the app then you cannot be helped.
I suggested OP that they use Mull, which is what I use, and that there are a few grievances that I have. I don't have to explain to you what mild inconveniences are, do I? I also don't recall asking for your help, neither did I ask for you to assume that I have problems with such minor issues. I am not going to create a fork just for that, I trust the defaults by the Divest team for privacy-focused browsing.