This is one other thing that is good about the Catholic Church — you belong within the boundaries of a parish and you stay there even when the priest moves on to another assigment.
Some people do go church-hopping (that’s what we call it) to follow a pastor or find a pastor they like more.
But all in all —
Catholics are in church for two things.
1. The Liturgy of the Word — directly from the Bible (what is posted daily)
2. The Liturgy of the Eucharist — totally centered on the Body and Blood of Christ.
The priest does not have the larger responsibilities that a protestant preacher might have in keeping a Congregation together.
The priest is there for two purposes:
1. To proclaim the Gospel — and preach (Liturgy of the Word)
2. To perform the Sacraments — the Liturgy of the Eucharist.
(Yes, other Sacraments may be offered other than the Eucharist.) There are often Baptisms, ALWAYS Confession, the Sacrament of Reconciliation. I every witnessed a priest giving the Sacrament of the Anointing of the Sick when someone had a stroke during Mass — of course, he then went back to the Mass when the ambulance came.
This thread is more about Protestant reality not the RCC.