No option to change password for email on iphone 12 ?? HELP!

Settings: Mail: Accounts: Here I have 4 email accounts that I access using the email icon on my iphone 12 - Work1, Work2, Yahoo, Gmail. Previously, and in all the advice I see here & online, the steps to follow when I change one of those passwords is to go to Settings: Mail: Accounts: then choose the account (in this case, Gmail & Work2), and update the password. There may have been one additional step where after clicking the chosen account (Work1), I again click Account at the top of the screen: Account me@work1.com > and then change/update the password -- but now there IS NO PASSWORD OPTION!?? Clicking Account that second time takes me to a screen with only Email: me@work1.com and Description: Work1 and Advanced Settings > but even Advanced Settings has no password option!? It only has Use SSL (on or off) & Move Discarded Messages Into: (Deleted Mailbox or Archive Mailbox) & Drafts - Store Drafts on Server (on or off) and S/MIME with 2 options for Sign (No) or Encrypt by Default (No). WHERE IS THE PASSWORD????? I had to change one of my work email passwords & out of regular caution, I changed my Gmail & Yahoo passwords as well (all done on my laptop). Now, I cannot get any email for these accounts on my phone. I knew I would need to update the password on my iPhone 12 and my iPad, but never before has there been NO PASSWORD option to edit, change, etc., in Settings: Mail: Account. Please help! Other Q&As seem to think that people have separate icons like Gmail on their phones, but no one does that - everyone uses the MAIL feature. Help!