Have a look at the trimToDays(UTC) function. It will remove the time part of a DateTime, setting it to 00:00:00. Apply this over all your dates and it will be easy to compare.
If you need to run this microflow frequently, it may be worth creating an extra field in your entity to store the trimmed date to save having to calculate it each time.
Hello, I finally use the xpath constraint to compare the list that i retrieve from the entity with a parameter that i call from the MicroFlow, now i have the list filtered when i take it.