Arch advice is bad

[Eva Tatarka]

You should never symlink different versions of a lib, if it works it's pure luck. They are different versions for a reason, they are likely not compatible. You should point users to install https://aur.archlinux.org/packages/ncurses5-compat-libs instead

[Dimitri Merejkowsky]

If you want to learn more, I've written an article about it : https://dmerej.info/blog/post/symlinks-and-so-files-on-linux/