For two summers in Rome I lived with Ukrainian Catholics. They had their Divine Liturgy each morning and I attended. They appreciated the contribution of my bass singing voice.
One of the things I noticed in their Rite that was so different from our Roman way of doing things was the concelebration of all the priests in the house.
Frequent concelebration is not Roman.
This is one of the reasons why I say constantly that concelebration should be “safe, legal and rare”.
There was a near mania for concelebration for a while. Many were the times when great pressure was put on me not to say my own Mass daily, but rather to concelebrate. I even got pressure and criticism from a priest “friend” who ought to have known better. (No, I haven’t forgotten.)
I note with interest that the Prefect of the Congregation for Divine Worship, Antonio Card. Cañizares Llovera recently commented on concelebration:
“[C]oncelebration, in the genuine tradition of the Church, whether eastern or western, is an extraordinary, solemn and public rite, normally presided over by the Bishop or his delegate, surrounded by his presbyterium and by the entire community of the faithful. But the daily concelebrations of priests only … do not form part of the Latin liturgical tradition.”