If you prefer not to connect your bank account, no problem! It's up to you how you verify and which data sources you choose to connect.
Whilst connecting all available data sources is recommended (as it increases the likelihood of a successful verification), you can skip the bank connection and instead opt to connect HMRC and/or Payroll accounts instead.
Note - this might not fully cover your employment history, and the verifier might need to request additional documents in the future.