[Old Yeller]

Is “Saint” Corona omniscient and can hear all the requests or is his voice mail piling up?

[Texas_Guy]

First heaven is outside of time of space, so if God wills it a saint can hear anything he wants them to at any time. That is what happens when you are in union with the one true God.

Second read Revelation. The bowls of sweet smelling incense are the prayers of the faithful. Why would they be presenting the prayers to God? Because the faithful asked the saints to pray to God for them.

Lastly just do an internet search on why Catholics ask saints in heaven to pray for them, and stop rehashing the old canards.

[Texas_Guy]

https://www.catholic.com/tract/praying-to-the-saints

This explains it all if you want to read why we ask for the intersession of saints, and have for millennia. In fact there are prayers to the saints on the walls of the catacombs that are from the earliest centuries of the church.

[cloudmountain]

Is “Saint” Corona omniscient and can hear all the requests or is his voice mail piling up?

Only God is omniscient.
Didn't you know that?