AWS Fargate Increase Concurrent Running tasks

When creating a service in AWS Fargate, that runs 1000 tasks, if I create a second one, then it stops scaling at 1000 concurrent tasks between both. The service quota is 5000 but it seems that the limit is imposed by the "DiscoverInstances" Quota which is set at 1000.

So if I understood correctly, if I request an increase of the DiscoverInstances quota to 3000, Fargate will be able to scale up to 3000? Or do I need to request an increase for other quotas? What is a reasonable number to request for that quota? I would like to run 100.000 concurrent tasks but don't know if it is too much to ask.

Thank you.