Hey! Happy to help.

Users are only evaluated when they move from one workflow to another so yes the user would exit a trigger segment if it's a segment-triggered campaign.

For segment-triggered campaigns, we start a journey for People when they meet the trigger conditions (enter/leave segments) - even if they do not meet the filter conditions. When they do not meet the filter conditions they enter a grace period but their journeys will almost always end with the Person falling out before the first message due to not meeting the filters.

To answer your second question, if a goal segment is set, there are 3 options for a segment-triggered campaign depending on your Goal & Exit setting:
 

• A user goes through the whole campaign no matter what happens
• A user exits when the conversion goal is met (the user does whatever action you want them to)
• A user exits the trigger and/or filter condition and exits the campaign.
  
  
  If no conversion goal is set, only the first and the third option are possible.