Someone who was knowledge told me years ago, that during the Eucharist that all participants are the celebrants and that the priest presides over the liturgy. Additionally, I have participated in small group Eucharistic liturgies where all said the Eucharistic prayer together with an understanding that that was how it was done in the early church.
In my research on the Internet I’ve found little that might confirm that this was true in the early church except what Paul F. Bradshaw, on the subject Christianity, Rituals, Practices, and Symbolism in the Oxford Research Encyclopedia said:
Although at first insisting that they were not a religion like others around them—indeed, they were regarded as atheists by their contemporaries—they ultimately came to adopt the language, images, and terminology of standard religious discourse once their persecution had ceased and the Church had emerged as a cultus publicus in the 4th century. This also coincided with a shift from an understanding of worship as an essentially corporate action presided over by its appointed ministers to one where those ministers were seen as carrying out its liturgy on behalf of the people.”
Early Christian Worship - Paul F. Bradshaw
Was early church worship “essentially corporate … presided over by its appointed ministers?”