Need Help Identifying Strap Securing Dryer Vent Hose
I've typically just seen that called metal strapping or steel strapping.
Home depot sells a similar thing in their ventilation accessories section, and they call it 'perforated metal hanger straps': https://www.homedepot.com/p/Master-Flow-Perforated-Metal-Hanger-Straps-3-4HS/100396917

Most metal strapping I've seen has straight sides, instead of wavy ones like yours has, but for this application there should be no difference.