“WCAG is hard” is a self-fulfilling prophecy. I teach WCAG, the good parts, to people who are not testers all the time and they usually get along fine. Do they understand all the nuance? All the weird language? Not without help.
But it’s not made for that. Principles and Guidelines bring you further than Success Criteria ever can.
But it’s not more complicated than other standards or even documentation. Don’t be afraid. You got this! 🫂