21st Century Foundation for the Right to Express and Engage in Speech Act or the 21st Century FREE Speech Act This bill makes various changes to liability protections and requirements for providers and users of an interactive computer service (e.g., a social media company). The bill replaces existing liability protections (sometimes referred to as Section 230 protection) related to content provided by third parties with more limited protections. The bill provides some liability protection for third-party content, but the protection shall not apply to a provider or user who carries out certain affirmative acts, such as barring users from the service or restricting access to or availability of material. However, the protection shall apply if the action is taken in good faith to restrict access to or availability of obscene, unlawful, or other similarly objectionable material. Additionally, the bill places specific requirements on common carrier technology companies, defined in the bill as providers that offer services to the public and have over 100 million active monthly users. These companies must furnish their services to all persons upon request and in a manner that does not discriminate against or unfairly advantage any particular persons, class of persons, political or religious groups, or localities; and publicly disclose their practices for moderating content, terminating accounts, and related matters. Aggrieved individuals and state entities may sue to enforce these requirements, and the Federal Communications Commission must develop best practices for complying with the requirements. The bill's provisions do not apply to designated areas of law, including criminal law and state law.