Support for Wireguard features is incomplete. Only one DNS server can be specified, while e.g. a combination of an IPv4 and IPv6 DNS server should be possible The endpoint cannot be a FQDN, but only an IP address
These items were included in the fixes for Bug 403546 (Redundant plasma-nm wireguard DNS entry in connection editor) and Bug 403548 (plasma-nm Wireguard: endpoint UI should be reworked). Both have been completed and will be included in an upcoming release.
Bulk transfer as requested in T17796