> USB-C is rapidly replacing DisplayPort, so within maybe a decade, that
> standard will be pretty much defunct, and arguably, it almost is already
I mean, I don't know about where you live, but I've only *started* to see substantial numbers of computers with DisplayPort output, within the last year or so. (I saw my first one quite a while ago, but then it was a long time before I saw another... Now it's most of the new computers I'm seeing.) DVI is the video output port standard that is currently in the process of going away, near as I can tell. HDMI and VGA are now losing market share (to DisplayPort) but will probably be around to some extent for a while, especially VGA (because, obsolete as it is, it has also been _extremely_ widely supported for decades, and that kind of ubiquity creates a certain amount of inertia; I just finished setting up a new, Windows 11 system, with 32GB of DDR4, and it has PS/2 keyboard and mouse ports, which have been technically obsolete since USB was introduced; but the tail on obviation of +standards like that can be lengthy).
Separately, HDMI is also losing market share to integration of formerly external functionality, into television sets themselves. A lot of folks don't feel that they need an external device to send video to the television any more, so now the only connector the TV has is for power, and everything else is via 802.11. But this is really neither here nor there for the computer monitor market. In any case, HDMI can't completely go away until video game consoles switch to something else (or get integrated into televisions, I suppose, but I don't currently see any reason to predict that particular development).