In 2019 US was trying to dethrone Maduro. He's been called dictator ever since, and Venezuela - his regime.
Lately, US has been in a need of oil – of a special sort that only Venezuela, Iran and Russia produce. The one for diesel.
Out of the blue, some sanctions on Venezuela have been lifted, and the same Maduro from the same Venezuela has turned himself into, according to the same US, a normal, ordinary, boring president.
So at the moment, whilst the US is bying oil from Venezuela, he officially, isn’t a dictator. At least for 6 months.
That's how one is granted and taken away the label of a dictator.
Keep this in mind, guys, when arguying in the comments. Don't confuse him with the current dictators.