Steps to reproduce the issue
This refers to https://www.facebook.com/groups/joomlanospam/posts/10158088758700997/
As can be seen on https://www.whatt.eu/en/ the accessibility button (bottom left, just above the cookie button, does appear on all browsers except (at least) on Safari 15 on MacOS 12 Monterey
See the Facebook thread for more screenshots and feedbacks