I am always amused by how "Linux newbie" guides are consistently tons of pages of choice paralysis and esoteric concepts but they all take a stop at "well, the UI looks kinda like Windows on this one, so that will probably help".
Look, I'm not particularly new to Linux, but also don't daily drive it. In my experience the UI is not the problem. Ever. Compatibility and setup are the problem. Every Linux distro I've ever seen is perfectly usable, nitpicks aside. The part that will make a newcomer bounce off is configuration. Especially if they're trying to mess with relatively unusual hardware like laptops driven by proprietary software, with MUX switched GPUs and whatnot. Only people deep into the ecosystem care about the minutia of the UI and the package management.