exerpt from the study ‘Tackling deepfakes in European policy’, published july 2021 by Authors associated with Rathenau institute ( NL ).
The report is available at the Think Tank page of Europees parlement
https://www.europarl.europa.eu/thinktank/nl/document.html?reference=EPRS_STU%282021%29690039

Exerpt ( quote ):

Perhaps the most worrying societal trend that is fed by the rise of disinformation and deepfakes is the perceived erosion of trust in news and information, confusion of facts and opinions, and even ’truth’ itself. A recent empirical study has indeed shown that the mere existence of deepfakes feeds distrust in any kind of information, whether true or false