Anyone have thoughts/experience on the M2 form factor capture cards from Magewell and Yuan?

I've been using the Magewell for a while, and it's perfectly fine, aside from running at temps that seem absurdly hot to me; 85-95C is quite common. Another post here mentioned the Yuan cards seem to run cooler; think that might have referred to one with an active cooler though, the one I'm testing with a passive heatsink also seems insanely hot. Anyone had one or the other fail during a show? Or are they really okay under that kind of heat? (I start to tense up if my CPU breaks 60C.) I'm experimenting with different heatsink configurations on one Magewell where I've got the space, definitely possible to do better than the stock variant.
Thanks

I seem to recall coming across a note from Magewell that anything under 100C was perfectly fine which... doesn't sound safe to me. The Magewell driver info lets you inspect the card temperature, which is currently in an open air case in a slightly warm room cruising at 102C. Haven't found any similar data on Yuan's side, but pressing a thermal probe against the heatsink gives me near 70C on the Magewell, 66C on the Yuan. So the Yuan runs a little cooler, but not much. And that's all without any load besides an input or two opened in vMix; on the Magewell at least temperature doesn't seem to vary much regardless of what the card's doing.