Date field in condition is ignored when a pill is used (example: Lookup Records)

Set system property glide.sys.date_format to "dd/MM/yyyy"
Create a flow with Lookup Record and add a condition with a date field
Put a pill in the date field
The condition will be ignored and all records will be returned

Create an action with a script step that transforms the date to the system format YYYY-MM-DD.  Pass the output of the transform to the condition.