Explanation
Big Deal Alerts are notifications that are sent to users when an opportunity reaches a certain amount, probability, or stage. They can be configured by administrators to alert sales reps or managers when they have a high likelihood of winning a big deal. Key Deals are afeature of Einstein Opportunity Scoring that shows the top opportunities based on their score and stage, but they do not send notifications. Activity Timeline is a component of Lightning Experience that shows the past and upcoming activities related to arecord, but it does not notify users of big deals. Performance chart is a type of report chart that shows how well users or teams are performing against their goals, but it does not alert users of big deals.
References:https://help.salesforce.com/s/articleView?id=sf.forecasts3_big_deal.htm&type=5

Explanation
To make sure that all of the Salesforce users log in using the branded login URL after deploying my domain, and give them a grace period for updating their bookmarks, the administrator should set the Redirect policy to Redirect with a warning to the same page within the domain. This will redirect users who try to log in from
https://login.salesforce.com or another domain to https://nto.my.salesforce.com, and show them a warning message that they need to update their bookmarks. Setting the Login policy or preventing login from
https://login.salesforce.com will not redirect users or give them a warning. Filtering with Form Factor will not affect login URL. References:
https://help.salesforce.com/s/articleView?id=sf.domain_mgmt_redirect.htm&type=5

Explanation
Utility bar is a feature that is available in a Lightning app where visibility is limited to the Salesforce mobile app. Utility bar allows users to access common productivity tools, such as notes, history, recent items, and more, from any page in the app.
References:https://help.salesforce.com/s/articleView?id=sf.app_builder_utility_bar.htm&type=5

Explanation
Component visibility allows you to restrict the visibility of a related list based on a permission set.
References:
https://help.salesforce.com/s/articleView?id=sf.dynamic_forms_component_visibility.htm&type=5