Explanation
The place in the console where you can find a list of all hosts in your environment that are in Reduced Functionality Mode (RFM) is Host Management > Filter for RFM. The Host Management page allows you to view and manage all hosts in your environment that have Falcon sensors installed. You can use the filter bar to filter hosts by various attributes, such as status, platform, type, or group. You can also filter hosts by health events, such as RFM, which is a mode that limits the sensor's functionality due to license expiration, network connectivity loss, or certificate validation failure. By filtering for RFM, you can see a list of all hosts that are in this mode1.
References: 1: Falcon Administrator Learning Path | Infographic | CrowdStrike

Explanation
The place where you can find the history of the successes and failures for any Falcon Fusion workflows is the Workflow Execution log. The Workflow Execution log in the Workflow Management option allows you to view the status and results of workflow executions triggered by detection events. You can filter the log by workflow name, status, start and end time, and detection ID. You can also view the details of each execution, including the actions performed, the output received, and any errors encountered. This log can help you troubleshoot potential failures or issues with your workflows1.
References: 1: Falcon Administrator Learning Path | Infographic | CrowdStrike

Explanation
The Logon Activities Report shows a graphical view of user logon activity and the hosts the user connected to, but it only gives a summary of the last logon activity for users. It does not give a detailed list of all logon activity for users, nor can it be filtered by computer name. The other options are either incorrect or not true of the report. Reference: CrowdStrike Falcon User Guide, page 50.