Explanation
Campaign Status is a standardpicklist field on the Campaign object that indicates whether a campaign is planned, in progress, completed, or aborted. Campaign Member Status is a custom picklist field on the Campaign Member object that indicates how a person responded to a campaign, such as sent, responded, registered, attended, etc. To add a new picklist value for Campaign Status, you need to edit the field in Object Manager. To add a new picklist value for Campaign Member Status, you need to modify the field on the Campaign Member Statuses related list on the Campaign page layout. References:
https://help.salesforce.com/s/articleView?id=sf.campaigns_fields.htm&type=5https://help.salesforce.com/s/articl

Explanation
Multi factor authentication (MFA) is a security feature that requires users to verify their identity using two or more factors when they log in to Salesforce. It can help prevent unauthorized access to Salesforce byadding an extra layer of protection beyond username and password. Enabling MFA can be done by administrators in the security settings or by users in their personal settings. Disabling TLS requirements for sessions, customizing organization wide defaults, or enabling caching and autocomplete on login page are not actions that would prevent unauthorized access to Salesforce; in fact, they may reduce security or have no effect on security at all.
References:https://help.salesforce.com/s/articleView?id=sf.security_mfa.htm&type=5

Explanation
There are two possible reasons why users are unable to access a report based on a custom report type created by an administrator. One is that the custom report type is in development mode, which means that it is not deployed and available for use by other users except for administrators and users with manage custom report types permission. The other is that the report is saved in a private folder, which means that it is visible only to its owner and not shared with other users or groups. References:
https://help.salesforce.com/s/articleView?id=sf.reports_builder_custom_report_types.htm&type=5
https://help.salesforce.com/s/articleView?id=sf.reports_builder_folders.htm&type=5