Hi @Anonymous,
Which trigger are you using? Please show me more details about your flow.
In my previous post, the trigger I used was Flow button, dynamic content Date can be selected from the trigger.
While you could also try to use a Compose action to get current date/time. Please see the following configuration for a reference.
In the Compose action, fill the following function into the Inputs field:
Utcnow(‘yyyy-MM-dd’)
In the Folder path filed of the Create file action, fill the path likes below:
/Name1/actionOutputs(‘Compose’)

I have tested it on my side and it worked well.
Best regards,
Mabel Mao