While Executing the bot there should be some notification which shows the current execution time and current execution activity name on the left side of the system.So,that user can have the clear idea about the bot execution and status of it.
The Debug mode highlights the activity it is currently working with if you tell it to. In this way you can see the status of the bot while building and testing it.
For most production bots it would be detrimental to have a portion of the screen taken up by an execution activity/time. Instead, you can use Log Message activities wherever you need to know the status of the bot.