I'm back to using mine (a monochrome model of the same vintage as show in the Archive screenshots) and, in 2022, I'm even writing apps for it. It's actually a ton of fun and ends up in my pocket far more than my phone.
Graffiti is still very intuitive. The display is a reasonable approximation of E Ink. Palm Desktop, hotsync, etc. all run fine on modern Windows machines, and I believe there are still viable Linux packages.
Turns out that TCP/IP is still TCP/IP and pretty much everything still "just works" provided you understand what it's trying to do (e.g. not be an iPhone). Mine automatically caches and syncs a few websites (including HN) as a sort of offline daily reading. You do need to appreciate the old Apple/iPod model where your computer is your hub and, for pre-wifi Palms, the network bridge.
They're just extremely focused little devices and excellent at what they do (calendar, notes, etc.). Treat it like it's a digital notepad, more in the vein of a pocket ReMarkable, and you might find it holds up better than you'd think.