The tweet shows an XSS bypass payload in the form of an iframe tag with a JavaScript alert. This bypass can potentially bypass multiple WAFs. A blogpost should be made highlighting the XSS vulnerability, the universal nature of the bypass, and provide technical details on how the payload can evade WAF protections.
For more insights, check out the original tweet here: https://twitter.com/Amrit__prasad/status/1798973946085216637