Quick follow up question on employee handbooks

https://privatebin.net/?ed573dc9277f1dba#3op1CSeiC6e2hHHdWQovXEzxGGxyFT9rFDHDcWH8nKhH

Quick follow-up question on employee handbooks. How often should a small business update theirs? Ours was written in 2019 and I suspect a lot has changed since then, especially around remote work