<PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="10.0.9" />

Microsoft.Extensions.Hosting.IHostedLifecycleService

public interface IHostedLifecycleService : IHostedService
Defines methods that are run before or after StartAsync and StopAsync.
Task StartedAsync(CancellationToken cancellationToken)

Triggered after StartAsync.

Task StartingAsync(CancellationToken cancellationToken)

Triggered before StartAsync.

Task StoppedAsync(CancellationToken cancellationToken)

Triggered after StopAsync.

Task StoppingAsync(CancellationToken cancellationToken)

Triggered before StopAsync.