hko, 
I just released version 0.4.2 of the https://crates.io/crates/openpgp-card low level library, and version 0.2.1 of the https://crates.io/crates/openpgp-card-sequoia wrapper.
These releases add support for #OpenPGP cards that are configured to use "KDF mode" for PIN presentation.
Thanks to the reporters in: https://codeberg.org/openpgp-card/openpgp-card-tools/issues/43 (and to Gniibe for providing me some insights into KDF-use in Gnuk).