Edit the ~/.config/environment.d/garuda.conf
File and delete or comment out the:
SSH_ASKPASS='/usr/bin/ksshaskpass'
SSH_ASKPASS_REQUIRE=prefer
part.
Either logout/login / reboot or use a new terminal and send these commands:
set -e SSH_ASKPASS
set -e SSH_ASKPASS_REQUIRE
Try to connect to a host and be happy you have the standard terminal input again instead of the grimsome popup.