The best practice for naming activities in a workflow is to assign description and unique names to activities based on their function. This helps to facilitate easier debugging, as it makes the workflow more readable, understandable, and maintainable. It also helps to identify the purpose and scope of each activity, and to avoid confusion or ambiguity when multiple activities of the same type are used in the workflow. For example, instead of using the default name "Type Into" for an activity that types a password into a login field, a better name would be "Type Password". Similarly, instead of using the default name "Click" for an activity that clicks a submit button, a better name would be "Click Submit".
References:
Studio - Naming Rules - UiPath Documentation Portal
Naming Rules and Best Practices - Studio - UiPath Community Forum
Variables, arguments and workflows naming - best practice - Help - UiPath Community Forum