Interesting, @wwian. I hadn’t had this problem before I switched to Nightly, but I just tried release Brave and it crashed almost immediately (from Properties of binary, version is 74.0.63.55, so presumably same, on Win10 Version 10.0.17763 Build 17763).
I went to https://brave.com/download/ and downloaded the latest installer, ran it, and problem was solved. It might even be the same version, but it works and doing it should leave your bookmarks and such alone (@Mattches please confirm): Brave 0.63.55 Chromium: 74.0.3729.131 (Official Build) (64-bit) OS Windows 10 OS Build 17763.437