Meeting Scheduler Template: Comparing Two Methods of Use

Hey there 👋 I'm looking at the meeting scheduler template and seeing two different ways this is working. Is one of these methods considered more reliable than the other or better in some way? Put another way, is there a reason why one would use one approach versus the other? https://chat.lindy.ai/meeting-scheduler-67fd9b63fc59b3f9cbc56978/editor