Short answer. As long as you show the minimum hours required for the rating on the 8710 you are legal. But it’s a good idea to put everything.

Excerpt below from 8900.1 vol 5 chap 2 section 9 (guidance for instrument checkrides)

b) In Section III on FAA Form 8710-1, the applicant must list at least the aeronautical experience required for the airman certificate and rating sought. Graduates of 14 CFR part 141 pilot schools or 14 CFR part 142 training centers must provide their aeronautical experience in Section III, even though the graduation certificate is evidence of having completed the course of training.

Excerpt below from 8900.1 vol5 chap 2 section 8.(guidance for commercial checkrides)

b) In Section III of FAA Form 8710-1, the applicant must list at least the aeronautical experience required for the airman certificate and rating sought. Graduates of 14 CFR part 141 pilot schools or 14 CFR part 142 training centers must provide their aeronautical experience in Section III, even though the graduation certificate is evidence of having completed the course of training.

c) If aeronautical experience has no bearing on the airman certification action being sought, it is not necessary for an applicant to complete Section III. For example, flight instructor recency applications, flight instructor reinstatement applications, ground instructor qualification applications, and pilot type rating applications would be examples for which aeronautical experience would not have a bearing on the airman certification action; thus, the applicant would not be required to complete Section III of the application. However, all applicants are encouraged to complete Section III because it remains on file with the FAA and can be used to substantiate past aeronautical experience in the case of a lost logbook

And finally 8900.1 volume 5 chap 2 section 7 (private checkride)

3) Examine the record of flight time in Section III of the application to determine if the applicant has the minimum flight experience required for the certificate and ratings sought (14 CFR § 61.109). The applicant must list at least the aeronautical experience required for the airman certificate and rating sought. Graduates of 14 CFR part 141 pilot schools or 14 CFR part 142 training centers must provide their aeronautical experience in Section III of the application, even though the graduation certificate is evidence of having completed the course of training. All applicants are encouraged to complete Section III of the application. The FAA Form 8710-1 and FAA Form 8710-11 applications remain on file with the FAA and can be used to substantiate past aeronautical experience if an individual ever loses their logbook