I started using Fedora / GNOME as my daily driver on my laptop for a few months and can see where this change may be coming from. I really like how clean GNOME is and it works really well with smaller single screens (laptop) and multi-touch input /w gestures... but the reason I haven't switched my desktop over is because I can't see how that same design philosophy translates to a desktop environment with just a mouse and keyboard.
Trying to figure out how to manage background applications like chat programs, soft-phones, and even email seems to be an uphill battle with GNOME.
If you can get any kind of multiscan monitor you're usually set for computers of that era. Connectors can be handled by passive adaptors if needed, but it is actually the refresh rate that is not always supported by the common VGA CRT (specifically the 15 kHz horizontal refresh rate).
Multiscan monitors had various names depending on the manufacturer. MultiSync, DiamondTron, SyncMaster, etc... so if you can get any CRT with 15 kHz support, you're set.