Hi @itsnikka,
Could you please share a screenshot of the Flow?
If possible, please share more information about which part of the task that contains the word "Test",
If here you mean the Task title contains the "Test", then we could add a condition to filter the trigger, as below:

If "test" is required to check within multiple fields, then you might need to nest the condition,
or consider write an And() formula and use the Advamced mode of the condition.
Function reference.
Regards,
Michael