LibreWolf is kinda strict about some privacy related settings and won't let you change them.
For example, on Linux it won't let websites follow light and dark mode because it is another piece of data that can be used to fingerprint you. You can still change it using about:config
.
Other than that, it is just better Firefox.
Dude is trying to glaze up everybody. Why would he say this shit if it weren't engineered to get Americans en masse to have good will towards him? The left is gonna support him regardless, so might as well drop some feelgood shit for the libs and chuds to munch on.