Another consideration is price. I haven’t looked in to it myself but wifi stuff is cheaaaap. And if you have a handle on flashing Tasmota then adding a lot of smart devices can be done on the cheap. I presume matter stuff for now might have a premium on top being new, but that’s just my guess. I know Zigbee and zwave are generally a little pricier than wifi devices.
Currently Matter devices are indeed more expensive but they have the potential of being even cheaper. Matter also supports Wifi and Ethernet, not only Thread.
With Matter, device manufacturers can focus entirely on the hardware/firmware and don‘t have to worry about client software like custom apps. They only have to implement a single protocol to support all major ecosystems natively.
In theory this should also lower the bar for entering the market for small companies.
I think Lemmy is correct here and the Mozilla docs only refer to the text content, not elements. It also mentions that < and > still have to be escaped to be displayed.
The HTML spec https://html.spec.whatwg.org/multipage/grouping-content.html#the-pre-element defines that the element contains „phrasing content“ which \ is part of.
It even explicitly mentions nesting \ inside .