Garmin products unable to use Wifi despite IP address attributed

tmo-datum.metricowireless.com would be affected by that “fix” in libknot >= 2.6.0 (released upstream already but not in Turris yet). As always, I see no way to be certain that a device will be fixed by it until it’s tried. In the meantime you can work around by various other ways, e.g.
Yamaha receiver problem with Knot DNS