iwd: Using iwd to connect to a wireless network (Part 2 - DNS managers)

[Stella Ashburne <rewefie@gmx.com>]

I refer to the sub-section "Select DNS manager" (https://wiki.archlinux.org/title/Iwd), in which the statement reads as follows:

At the moment, iwd supports two DNS managers - systemd-resolved and resolvconf

Question: Which of the above two manages my DNS queries in a default Debian with lxqt-core and lightdm?

In /etc/network/interfaces, my dns-servers are 8.8.8.8 1.1.1.1

[How do I manage to add only these two IP addresses? During installation of Debian 11, I unplugged the LAN cable from my machine. I installed the OS without any internet connection and thus avoided auto configuration of the network.]

I also installed the package resolvconf because I need to use it with openvpn.