A description of Windows event logs is available here: https://learn.microsoft.com/en-us/training/modules/manage-monitor-event-logs/2-describe-windows-server-event-logs
Info copied from the page - in were the event will be written in theory to depends on how wide its effect is.
Windows Built-in Application log (wide effect)
This log contains errors, warnings, and informational events that relate to the operation of apps such as Microsoft Exchange Server, the Simple Mail Transfer Protocol (SMTP) service, and other applications.
Application and service logs (narrow effect)
The Applications and Services Logs node stores events from a single application or component rather than events that might have system-wide effects.
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