Can an internal application load balancer route to a private apigateway api via a target group of vpce ip addresses? – Amazon web services

Goal:

I would like to route from an application load balancer to an apigateway api.
I found an article that suggested that this was possible by attaching a vpce to the apigateway instance and then creating a target group of the vpce ip addresses.
I have followed all of the instructions (except for the step that involves creating a route 53 alias and a global accelerator).

I am confused on how the alb would route to the specific apigatway api, especially if the vpce has multiple apis attached.

Extra Context / Parameter

• would like the apigatway to be private
• would like the alb to be internal

Resources:

I am trying to follow along this guide: https://aws.amazon.com/blogs/networking-and-content-delivery/accessing-an-aws-api-gateway-via-static-ip-addresses-provided-by-aws-global-accelerator/

Questions

1. Is there a way to specify extra information for the target group (such that we can direct traffic to the specific api?)
2. Is there another way to route traffic from an alb to apigateway?
3. can anyone explain to me how the alb is routing traffic through the vpce to the specific api? https://aws.amazon.com/blogs/networking-and-content-delivery/accessing-an-aws-api-gateway-via-static-ip-addresses-provided-by-aws-global-accelerator/

Thanks!