Is it possible to set variable information (date information etc ...) in the file name with the File option of Configure the output? For example, filename_yyyymmdd_hhmmss.log etc ...
Or is there any other way to change the file name dynamically when outputting the collected logs to a file?
yes you can
https://www.elastic.co/guide/en/beats/auditbeat/current/rename-fields.html
and also if you ship your logs first into logstash you can apply your changes and your possible enrichments too