Do we need to write conclusion in Q1 of writing section, as per the GREG's template?

Do we need to write conclusion in Q1 of writing section, as per the GREG’s template?

Hey! Greg’s template is a placeholder meant to make things easier for you. You absolutely don’t have to follow it if you think you can write a good piece without the guidelines. However, having a template definitely helps you out since you aren’t busy formulating the structure in your head.

TLDR; If you can always write the conclusion, it brings closure to your text & if you just had your test & missed the conclusion I wouldn’t worry much about it you’ll be just fine.

Haha just the same thought occurred to me two days after I took the TOEFL (and didn’t do a conclusion on Writing Q1), and I freaked out for a while kicking myself for having missed such an obvious thing.
Went back to Greg’s videos around W Q1 - no mention of a conclusion.
TOEFL score came through a couple of days ago and Writing netted a 30, so nope, no conclusion necessary.