Explanation
Case escalation rules are a feature that can be used to meet this requirement. Case escalation rules can automatically escalate cases that meet certain criteria, such as being open for more than a specified time or having a certain priority. Escalation rules can assign cases to a different owner or queue and send email notifications to the support manager or other recipients. References:
https://help.salesforce.com/s/articleView?id=sf.case_escalation.htm&type=5

Explanation
To re-assign cases that meet the 24 hour SLA to the next tier queue, the administrator should use a case escalation rule that defines the criteria for escalating cases, such as age or priority, and the actions to perform when those criteria are met, such as changing owner or sending email alerts. Case escalation rules can help ensure that cases are handled in a timely manner and escalated to appropriate users or queues. Einstein Case Routing, Auto-response rule, and Case assignment rule are not able to re-assign cases based on SLA or age.
References: https://help.salesforce.com/s/articleView?id=sf.case_escalation.htm&type=5