Yes, despite being on the official accessories list with a price and everything, I've only been able to find them for sale at the main Nintendo site.
I also had a "Genki Covert Dock" for my Switch 1. It was great for traveling, much smaller than a regular dock... It's basically like a USB-C charging brick, but also with an HDMI port. You plug it into your Switch via USB-C and then into a TV via HDMI and you have your Switch "docked" and playing on the TV.
Not sure if something like this will be possible with Switch 2, since I guess it also expects some degree of active cooling from the dock... And, Genki is in hot water with Nintendo right now.
I've played around with emulators, including Switch emulators. Ryujinx works (for Switch 1 games) on macOS but there are performance issues (mostly shader compilation stutters, and long waiting time to boot a game if you have a large shader cache). So yeah, for now, sticking with a "real" Switch (2).
(I only played games that I dumped myself... but even doing that is technically against the DMCA, since you have to "bypass" the "protection measures" that they have in place. I don't like it, but Nintendo isn't in the wrong [legally] to ban players using flashcarts even if they dumped the games themselves.)
I haven't used Cemu much, but I'll say that Dolphin is an amazing project for Gamecube/Wii games, it plays everything that I've thrown at it perfectly. I use Retroarch for stuff older than that.
I've also evaluated HDMI input solutions via USB 3/USB-C. I'd be interested in playing Switch games on my laptop display. But, I've always found the latency to be higher than I would like for real-time gaming.