Unreadable AI slop.
Did the author actually test 5v into the microcontroller? The signal values might be intended to be 3.3v, but I have a bunch of esp32 boards reading 5v signals on their pins, and they have been doing that for years now. At the time I did some research and found posts from the espressif designer that claimed that the pins were okay with 5v.

Which is worse, because its polluting up the search results. Infuriating.