Welcome back @srk2017
I have seen 3 traditional path students in the local community (1 last year, 2 this year) who got a successful residency match.
1 went to Warren Alpert Medical School (Brown) for residency from 93+ rank medical school - no gap year in MD.
1 went to a top 5 medical school for a competitive residency in CA from a top 20 medical school - took a gap year after M3.
1 went to FL hospital for a competitive surgery residency from top 10 medical school- no gap year in MD.
1 other person in DO route took a gap year after M2(or D2?). Will know about residency after 3 years.
I recall the above DO student took a gap year to manage the life-school balance, while other student took a gap year after M3 because of specialty choice. IMO, taking one year off to do research and get abstracts and publications can be very helpful if you are interested in competitive specialties like dermatology, neurosurgery, head and neck surgery, urology, etc. Some got into competitive residencies without Gap year too.