They meant you see video evidence of it on YouTube, not go yourself.

The spec still uses letters, WiFi 7 is 802.11BE under the old common name convention this gen would be WiFi BE which is a bit confusing. As of WiFi AX(6) they switched to numbers for the common name. As for who it’s good for, it’s great for everyone, not just gamers. The spec has a lot of major improvements in bandwidth, collision avoidance and transmission density. All of which makes it better to move lots of data to multiple clients at the same time. Meaning if you wanted to stream Netflix to 3-4 devices in 4k the limiting factor is not the WiFi anymore, it’s the internet connection and the client hardware. If you work from home and have to video call in, but others in your house want to stream high bandwidth content, no problem.

Those don’t seal well, so probably not

Aircraft maintenance has been doing the negative pressure unlock tests on cockpit doors for decades, its honestly surprising what isn’t common knowledge. Like others have said, rapid decompression of only a portion of the aircraft is very bad, and will result in massive structural failure as individual compartments aren’t pressure rated and will blow apart. The doors I’ve had experience with had large panels that would pop out when in a negative pressure event.

I can’t speak to the all in one dream machine, though I’m sure it’s similar in capability to my UDM pro, which has been fairly solid for me and only really has had trouble when I induced it myself. It’s definitely much more complex and open than most home routers, and allows you to set every single thing you can think of, the drawback though is that it’s not as automated as some home routers and you need to know what you are setting more in depth when you step off the auto modes. Overall I’ve been very happy with my unifi setup. I also use Protect and I’m looking to set up Access too soon(ish).