At least quotations attributed to them.
“It is quite literally true that if an ancestor of mine from, say, the year 500 showed up at my parish church for liturgy next Sunday, he’d know exactly what was going on.”
But none of Jesus’ apostles would.
They wouldn't be reading your Bible either. Between Christ's crucifixion and Paul's first letters at least 15 years have elapsed. There were no Pauline Epistles and no Gospels to read.
“But none of Jesus’ apostles would.”
Certainly not all of it, no. But it is likely they would recognize at a minimum the Anaphora. A number of them were developed while at least +John was alive.