Here is the text so people can decide for themselves and if they don't want to watch the video where he does explain some parts and glosses over others. (full amendment at https://legiscan.com/TX/text/SB20/2025)

Sec. 43.235. POSSESSION OR PROMOTION OF OBSCENE VISUAL MATERIAL APPEARING TO DEPICT CHILD.

(a) In this section: (1) "Promote" has the meaning assigned by Section 43.25. (2) "Visual material" has the meaning assigned by Section 43.26.

(b) A person commits an offense if the person knowingly possesses, accesses with intent to view, or promotes obscene visual material containing a depiction that appears to be of a child younger than 18 years of age engaging in activities described by Section 43.21(a)(1)(B), regardless of whether the depiction is an image of an actual child, a cartoon or animation, or an image created using an artificial intelligence application or other computer software.

• “Promote” means to procure, manufacture, issue, sell, give, provide, lend, mail, deliver, transfer, transmit, publish, distribute, circulate, disseminate, present, exhibit, or advertise or to offer or agree to do any of the above.

• “Visual material” includes ... "any image transmitted to a computer or other video screen by telephone line, cable, satellite transmission, or other method"

• The activities described by Section 43.21(a)(1)(B):

depicts or describes: (i) patently offensive representations or descriptions of ultimate sexual acts, normal or perverted, actual or simulated, including sexual intercourse, sodomy, and sexual bestiality; or (ii) patently offensive representations or descriptions of masturbation, excretory functions, sadism, masochism, lewd exhibition of the genitals, the male or female genitals in a state of sexual stimulation or arousal, covered male genitals in a discernibly turgid state or a device designed and marketed as useful primarily for stimulation of the human genital organs

(definitions from https://texas.public.law/statutes/tex._penal_code_section_43.21)