Is this an ideological question? They are still primarily closed source.
Is this an install difficulty question? If you can read you can install them.
Is this a performance question? If you're a normie they're good. If you're demanding the top fps at the top resolution in dx12 games then there is still a noticeable difference but it should be fixed this year.
Much less expensive (barring diy and print-a-case-yourself), and most importantly to certain people, easily available in the US from Amazon. (Jetkvm also suffers from unclear import costs and delays)
On-Topic: Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it to a sentence, the answer might be: anything that gratifies one's intellectual curiosity.
This trick unfortunately falls down above a certain size, especially if you want to game at a good fps, and stay in the consumer space (price) rather than the commercial display space. That gigabyte 45 inch is too small to use above your fireplace and view across the living room.
In my case I compromised on needing 4k, and got an lg 65 inch with only HDMI.
Sure, but lts often doesn't work for other use cases like gaming. For example the experience on lts with this year's AMD gpus will be extremely poor if it works at all.
I run Arch and my 9070 xt experience was poor for several months after release. I can't imagine modern gaming on an lts release.
Cachy being Arch based and recompiling with modern cpu flags doesn't seem to be targeting the users who want unchanging boring software.
You have other options besides leaking your home IP. You could use a VPN like Wireguard or a WG product like Tailscale, which is what I do. My Tailnet IPs are in public DNS, too, because it doesn't matter, they're not routable publicly. You could also get a cheap VPS in The Cloud and proxy requests to your home.
Tailscale doesn't support mDNS / multicast at all, making working with KDE Connect more nebulous. I attempted to add a static peer via the Tailscale hostname, but both ends report not reachable, and the Tailscale daemon is constantly dropping multicast packets. So I'm not sure how this helps, but I also don't have a use case - if I'm on my laptop, my phone is on the same Wifi network 99% of the time.
I can't see a date on the post (on mobile) but the archives link has month and year.