The change in leadership, in this case, is coming about after an election. Legislative elections were held in March 2021, but no party reached the 61-seat threshold needed to obtain a majority in the 120-seat Knesset. This is not a surprise - no party has ever reached this threshold.
Further, the answers this question suggest that Israel has a highly fractured polity with frequent premature elections.
This is highly surprising to me.
Other countries with similar parliamentary democracy systems (such as the UK, Japan and India) frequently have full term/ majority.
Further, given the context in which Israel was formed, it would (intuitively) make sense for most people to agree on political issues.
Given the above, why does Israel always have such divided legislatures?