You should focus less on dual boot and more on beginner-friendliness. If the distro is very good at dual booting (actually never heard of such a thing) but is a catastrophe concerning usability, then it doesn’t make sense i guess. Don’t install Linux to hate it :-). Just try a user friendly distro like Mint or maybe even Manjaro. ( Sooner or later you will end up using Arch and tell people on the internet, that you’re using Arch btw. I’m using Arch btw.)