Notes :- GPIO2 It is considered safer to pull it high with a resistor on boot rather than leave it floating to avoid possible chip damage if pin is pulled high by your program
This sentence doesn't make sense to me. How can leaving the pin floating be damaging to the chip?
Shouldn't it say something like this:
"It is considered safer to pull it high with a resistor on boot OR leave it floating rather than CONNECTING IT DIRECTLY TO VCC to avoid possible chip damage if pin is pulled DOWN by your program"
This would make sense. If it is pulled directly to 3.3V and if you now set the GPIO02 as output and set it to LOW in your program code, then it will would short the 3.3V to GND through the GPIO02 pin.
Or do I misunderstand something fundamental here?