@werner said the reading order should be like on the page https://gnupg.com/vsd/kleopatra-settings.html:

I tend to agree with keeping it short and close to the wording we use for normal public key imports.

How about "Certification includes that you check the fingerprint against a trusted source."? "Means" seems wrong to me. @hej, please comment

ok, lets do this. I'll update the description

I'm fine with just dropping it.

I'm okay with omitting the list of suggestions for shared secret keys. The person distributing the key should have told the recipients how to import and certify them properly.

How about changing the text after sentence two simply to:

Do we agree to drop bolt font for QES certificates?
Will we change this for VSD 3.4?

The display in Okular is independent from Kleopatra, so dropping it in Kleopatra should be fine.
If a QES certificate is available, Okular should highlight and add a filter for them (which is currently not working, see T6632: Okular: Highlight / preselect "nonRepudiation" certificates for qualified signatures)

I currently have a slight preference to drop bold and go with normal font. Werner would be ok with that, too.

@svuorela said, QES certs shouldn't be required to be on a smartcard.

Using an icon for QES certificates isn't that easy because we use an icon for smartcard certificates and any list item can have at most one icon. Moreover, QES certificates are very like stored on a smartcard (isn't that even a requirement?), i.e. an icon clash is basically guaranteed.

In T6632: Okular: Highlight / preselect "nonRepudiation" certificates for qualified signatures I had the impression, that some hint is useful for signing operations. Probably not so much in general.

Highlighting QES is mostly useful for Okular, I guess.
Maybe use a symbol with a pen? That should be self-explanatory.