On October 28, 2020 a prominent manufacturer recalled ~47,000 panel units due to a potential fire hazard, all with integrated surge protection devices (SPD). Their recommendation? Buy a new distribution panel or install an external SPD.
If it was your panel, upstream from your critical equipment, wouldn't you be worried how much over-voltage passed through to your uninterruptible power supply (UPS) or other critical equipment?
This again brings up the discussion on external vs. integrated SPD. It really comes down to downtime. How much downtime will you experience while you wait for the parts to fix the panel? For this manufacturer - and due to CoVid distribution challenges - it could potentially have been weeks. With an external SPD device, a day or two.
Which would you prefer?