Answer:
The two party system makes the difference between the parties much more extreme. For example, a moderately right-leaning individual would be placed in the same group as extremely-right voters. In contrast, a multiparty system acts more as a political spectrum split into multiple parts.
Explanation:
Here are some links on the advantages/disadvantages on two-party systems:
https://www.britannica.com/topic/two-party-system
https://www.shivajicollege.ac.in/sPanel/uploads/econtent/2bf91b0270b44893ad98060beda18692.pdf