I’m not sure on the use of the L-Lysine. I’m kinda hoping ransomnote or little jeremiah digs in on it.
Embedded in the article you posted is a link to this other one, which gets more into particulars:
https://www.researchgate.net/publication/344210822_Lysine_Therapy_for_SARS-CoV-2
Thanks for pointing that out. It's so nice that people read the articles.