With the battery issues over the last year plus, any charger I use has to "smart" and/or use the IQ tech - both capable of charge throttling to ensure the charge rate does not exceed that of the batteries being charged by these devices. Since most devices are non-OEM device charge units, it matters if something goes wrong with the battery and warranty-related questions get asked. The "smart and IQ" technologies are my hedge against that happening and perhaps the net benefit of lower wait times for complete device power restoration.
My Samsung Note 8 came with an OEM 2.0 amp/5.0 volt (1.67 amp/9.0 volt) plug-in charge unit using USB-C. It is not labeled as "fast", "quick", "IQ" or any other nomenclature. Perhaps this was specified by the Samsung engineers as a hedge against creating battery issues possibly caused by non-OEM charge units available with 2.4 amp or even 3.0 amp (USB-C) charge units. That all said, I rarely use the OEM charger unit.
So, we can all chase after faster charge times using a more powerful/higher amp charge unit, but how safe is that? I ask since most consumers will only "see" that faster rate and not be aware of possible damage to and other risks created by this topic, imposed on expensive phones. I think we can test these devices, but at what point do they create issues and risks, if they do at all? I looking at you, Samsung, given the extensive tests done to prove battery reliability and robust power management designs. Why the throttled back/dialed down power of the OEM charger that came with the Note 8 phone, if higher powered units were judged to be risks to this device?