The official charger has 4.6V nominal compared to 5.0V nominal voltage of USB.
Some people will say:
"Doesn't matter – I have been doing it for X years and nothing bad happened." Some will say:
"You must not connect USB charger!!"
I did some
limited testing in 2019.
The decision is up to you. For my good consoles I tend to stay extra-safe and only use the official adapter.
Good luck and have fun!