I was going through Azure function app best practices
https://learn.microsoft.com/en-us/azure/azure-functions/functions-best-practices
and came across the FUNCTIONS_WORKER_PROCESS_COUNT setting

I want to understand the implications of changing this setting with the following example

I have 2 Azure function apps,
1st with 1 Function and Trigger
2nd with with multiple functions and triggers.

Azure Function App1 –> Trigger1

Azure Function App2 –> Trigger1, Trigger2, Trigger3, Trigger4

The function apps are hosted in a premium plan with the following plan

No, I go and increase the value of FUNCTIONS_WORKER_PROCESS_COUNT to 4.

What will be impact of increasing the count?

If there are multiple and concurrent calls to

Case 1. Azure Function App1 – Trigger1

Case 2. Azure Function App2 – Trigger1, Trigger2, Trigger3, Trigger4

–> For Case 1, will Azure allow 4 concurrent calls to Trigger 1 and then scale out to more instances of Function App 1

–> For Case 2, Will Azure allow all the triggers to run concurrently before scaling out to more instances of Function App2

What will the impact of cost in both the cases? (I understand scaling out will cost more)