Looks like LED strips, you can see some of the cut points

I haven’t seen a seen a single home screen Roku ad since I installed Pi-Hole.

This will be my last Roku, it has become such a horrible ad-ridden experience since I first got it years ago.

What hardware are you using to attach the Pi the PCI slot?

I have a stock PiKMV V3 attached to my home server that seeing this I now need to upgrade!