Explanation
Web-to-Case allows you to create cases from a form on your website.
References: https://help.salesforce.com/s/articleView?id=sf.customizesupport_web_to_case.htm&type=5

Explanation
To routenew leads to the correct sales person based on the lead address, the administrator should use lead assignment rules that specify criteria based on lead fields such as City, State/Province, or Country, and assign leads that match those criteria to queues or users. Lead assignment rules can be triggered automatically when leads are created or manually by users. Creating a formula field, assigning with an escalation rule, or configuring a validation rule will not route leads to sales people.
References:https://help.salesforce.com/s/articleView?id=sf.leads_assignment_rules.htm&type=5

Explanation
The User Licenses related list in Company Information shows the types of licenses that have been purchased for an org and how many are available orused. It also shows the expiration date of each license type if applicable. This information can help administrators plan for license purchases and manage user access.
Searching for license types in setup does not show how many licenses have been purchased or how many are available or used. User Management settings in setup does not show license information either, but rather settings related to user login, session, identity, etc. Usage-based entitlement related list in company information shows information about usage-based licenses such as API requests or sandboxes, but not user licenses.
References:https://help.salesforce.com/s/articleView?id=sf.users_understanding_license_types.htm&type=5

Explanation
Screen flow allows you to create a form that collects user input and performs actions based on that input. You can use screen components to display questions and instructions, and use flow logic to update records or send notifications.
References: https://trailhead.salesforce.com/content/learn/modules/screen-flows/get-started-with-screen-flows
https://help.salesforce.com/s/articleView?id=sf.flow_builder_overview.htm&type=5