I wanted to see runes (not only in Libreoffice) but in Chrome too. For me, I could not see the following Runes: ᛠᚣᚫᛞᛟᛝᛚᛗᛖᛒᛏᛋᛉᛈᛇᛂᛁᚾᚻᚹᚷᚳᚱᚩᚦᚢ for me, it was boxes (dotted lines), questionmarks, and something on those lines.
Note: This might be a question that already has a well-approved answer, my question was not about how to install fonts in general, but how to install one specific either font or package (that would enable me to view the specific font)
Answer provided below.
I had this problem for years, did not know it was this simple.
Edit: I Also wanted to create a C program, (Related link below) and installing the below package trough apt worked flawlessly.
Is there a way to print Runes as characters? - At StackOverflow