The action described below addresses the issue but doesn't solve the root cause of the problem.

The process outlined below does not solve the problem.

The infrastructure at AWS as described in the section How to Reproduce the Issue, for example provisioned by the Terraform plan.

Execute the following command to stop the systemd-resolved service:

$ sudo systemctl stop systemd-resolved

Optionally: execute the tests as described in the section How to Reproduce the Issue to verify that the stopped service addresses the issue.

As the system falls back to dns, resolving DNS names continues to work but does not use the systemd-resolved service (see option 2 below).

Execute the following command to remove (disable) the service from the system startup and make the change permanent even after a system reboot/restart:

$ sudo systemctl disable systemd-resolved

Note: you can stop and disable the service with a single command:

$ sudo systemctl disable --now systemd-resolved