pg_failover_slots extension with CNPG

[MathCharton]

Hello,
I'm trying to use this extension with CNPG and i have no problem with basic configuration, however, i have a few questions.
This is my context and configuration:

• I have a primary and one replica

• I'm using a CDC tool (debezium) that's why i need this extension to ensure that i will not lose data after failover / switchover

• About configuration:
  hot_standby_feedback: on
  pg_failover_slots.synchronize_slot_names: debezium
  I dont use primary_slot_name because i noticed that with CNPG, this value is never empty (can you confirm it ?)

• Questions:

1. I would like to use pg_failover_slots.standby_slot_names parameter to ensure that i will not lose data, so if I've understood correctly, I need to set the value of my replica physical's replication_slot ! (for example the slot used for streaming_replication ?)
   ex: pg_failover_slots.standby_slot_names = cnpg-test-2 (in case of cnpg-test-1 is primary db)

2. So in case of failover/switchover , cnpg-test-1 become replica and what about pg_failover_slots.standby_slot_names value ? Should i manually upgrade the value to pg_failover_slots.standby_slot_names = cnpg-test-1 ?

3. Is there a way to retrieve this physical's replication_slot name (replica pod) into the manifest declaration ?

thanks