Is this considered a landside for Bibi?
Absolutely, guaranteed broad right wing coalition, against all odds. No polls predicted it, the media elite went all out to destroy Bibi, it just came back as a boomerang. וכמאמר העולם: פיש אויף מיר קאק אויף מיר אבער אבי אויף מיר
Charedim, on the one hand have won since they are in while Lapid is out, on the other hand only 13 seats total bc of Yishai and Bnei Torah which is a historical low.
I read here that Yishai took voters from BY. Part of that is true re chardal votes, but he also took anyone who was disappointed with established charedi leadership, working charedim, sefardim who hate deri, etc.