i think issue with software heatup. i bring new original samsung charger and tried with new one adaptor and old adaptor but issue seems same with new one too. and next day with old charger gets better result. i think when day is hot then it creates issues else fine. compare result of both charger.
I also posted difference between. Actually there is not much difference in cable charging 0-100% it takes 3hrs in fast charging 2 hrs 30min. So if you have heating issues I suggest to use cable charging to avoid any damage. Also 1st check with your specific device use fast charging 1s then cable charging. Check time taken for both and decide yourself✌️✌️