The settings shown in the image indicate that the data retention time in days is configured at two different levels: the account level and the object level. At the account level, the MIN_DATA_RETENTION_TIME_IN_DAYSis set to 5 days, and at the object level, the DATA_RETENTION_TIME_IN_DAYSis set to 2 days. Since the object level setting has a lower value, it takes precedence over the account level setting for the specific object. Therefore, the data will be retained for
2 days at the object level.
References: Snowflake Documentation on Data Retention Policies

The Activity area of Snowsight includes the Query History page, which allows users to monitor and view details about queries executed in their account, including performance data1. It also includes the Automatic Clustering History, which provides insights into the automatic clustering operations performed on tables2.

Search optimization in Snowflake is designed to improve the performance of queries that are selective and involve point lookup operations using equality and IN predicates. It is particularly beneficial for queries that access columns with a high number of distinct values1.
References = [COF-C02] SnowPro Core Certification Exam Study Guide, Snowflake Documentation

TheSYSTEM$GET_PRIVATELINKfunction in Snowflake provides proxy information necessary for configuring PrivateLink connections, which can protect Snowsight as well as other Snowflake services.
PrivateLink enhances security by allowing Snowflake to be accessed via a private connection within a cloud provider's network, reducing exposure to the public internet.
References:
* Snowflake Documentation: PrivateLink Setup