See https://investor.okta.com/static-files/8a461359-83f8-4332-9f... , the "Dollar-based net retention rate for the trailing 12 months ended" numbers.
For the last 9 years:
2015: 129%
2016: 120%
2017: 123%
2018: 121%
2019: 120%
2020: 119%
2021: 121%
2022: 124%
2023: 120%
It is evidence that auth is sticky.
See https://investor.okta.com/static-files/8a461359-83f8-4332-9f... , the "Dollar-based net retention rate for the trailing 12 months ended" numbers.