Flows deployed with change sets are inactive by default and need to be manually activated in the destination org before they can run. Deploying or redeploying a flow with change sets creates a new version of the flow in the destination org, which preserves the previous versions and allows for rollback if needed. All flow dependencies, such as custom fields, objects, or variables, are automatically added to the change set when a flow is added

An after save flow is a type of flow that runs in the background after a record is saved and performs actions based on the record data or changes. An after save flow does not require user input or interaction and can be triggered by a record-triggered flow element or by an Apex trigger. In this case, you can create an after save flow that runs when a case record is updated and delivers status update email to customers based on certain criteria or conditions. References: https://help.salesforce.com/s/articleView?id=sf.flow_trigger_types.
htm&type=5 https://help.salesforce.com/s/articleView?id=sf.flow_concepts_trigger.htm&type=5

Making the field Read Only on the page layout prevents users from manually entering or editing the field value on the record page. This ensures that users cannot bypass answering the questions in order to determine their Tier value. Using a screen flow to ask the questions allows administrators to create an interactive user interface that guides users through a series of screens based on their inputs and logic. A screen flow can be used to ask questions and set the field value based on the answers

To help with this issue, the administrator can do the following options:
* Move some page components behind a tab. This will reduce the number of components that load initially and improve performance.
* Remove some of the fields displayed. This will reduce the amount of data that needs to be retrieved and rendered on the page.
* Reduce the number of related lists displayed. This will also reduce the amount of data that needs to be retrieved and rendered on the page. References: https://help.salesforce.com/s/articleView?id=sf.
lex_performance_considerations.htm&type=5

Workflow debug log category captures information about workflow rules, flows, processes, and actions that are executed as a result of a DML operation. References: