“Mass in the round” might be somewhat ambiguous. Maybe not if everyone is thinking of the same thing. I don’t know anyone personally who seriously dislikes it, but do know some who prefer other types of structure.
Growing up, my Godfather was a home builder primarily, but did do some industrial things. My dad did the electrical work and often I would help. We did the new parish Church as a cross shaped entity, with the Altar in the “middle” with pews primarily on 3 of the sides. The 4th was primarily for the choir, but people could sit/kneel/stand there too. The communion rail was octagonal if I remember. Rooms behind the short side for Sacristry and storage. Below was effectively the Rectory, and Church Offices.
No one had complaints about it, and their Web site still indicates that Church is still open, although I probably haven’t been there for 40 or 50 years now.
In the older pre and early Vatican II era, communion in that style was very efficient. The priest kept going round and round, as the recepients would receive and be replaced by new recepients without the need to get to the end, stop, walk across, then serve the next group.