Hello @Charles88,
Many hosts here have said that they request guests who haven't already done so to go through the process to provide government ID to Airbnb. These guests would already have a profile with the minimum requirements. They sometimes have to help the guest with instructions but it does work.
The article below indicates that it is possible to add additional ID. The guest should go to "Profile", then "Trust and verification". Then under "Add more verifications" choose the verification to add.
As, like me, you've already provided all verifications that "Add more ..." section won't appear in your profile.
I originally created my profile more than a year ago but was able to add ID verification when I started hosting last September.
The "Add more verifications" section doesn't now appear on my profile as I added all verifications some time ago.
Steve.