Explanation
Flow Builder and Process Builder are two automation tools that should be used to accomplish this request.
Flow Builder can be used to create a flow that defines the logic and actions for creating a renewal opportunity, such as setting the stage, close date, and amount. Process Builder can be used to create a process that triggers the flow when an opportunity is closed won. References:
https://help.salesforce.com/s/articleView?id=sf.flow_builder.htm&type=5
https://help.salesforce.com/s/articleView?id=sf.process_overview.htm&type=5

Explanation
Case escalation rules are a featurethat 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
Page layout editor is a tool that allows you to customize the layout and organization of detail and edit pages for a specific object and record type combination. You can also use page layout editor to customize related lists on detail pages by adding or removing fields, changing column order, sorting records, etc. To meet the requirement of showing different fields on the Case related list from the Account record for Sales and Customer Care users, you need to use page layout editor to modify the related list properties for each page layout assigned to those users. References:
https://help.salesforce.com/s/articleView?id=sf.customize_layoutrelatedlists.htm&type=5