Is it possible to set a task priority if all threads in the pool have finished their work?

If all threads in the pool have finished their work, new tasks you want to run will be placed in the thread pool's task queue. The priority of tasks in standard .NET thread pools (such as ThreadPool) is not set directly.

However, if the thread pool is empty and tasks are waiting in the queue, the execution priority depends on the queue order, not the task priority.

If there is a need to manage task priorities, you can implement your own priority queue mechanism or use specialized libraries.

Thus, in a standard thread pool, task priority is not set, and if all threads have finished their work, tasks are executed in the order they arrive.