I was inspired by that DF video and started to look around for a CRT monitor and realised it wasn't going to be easy. In the end, after months of looking, I asked a family member and it turned out they had one sitting around taking up space that was the exact same model I grew up PC gaming with. Samsung SyncMaster 753DFX. This is a pretty bog standard 'flat' screen 17" model.
I knew that my GPU (RX 570) would not work with it since analogue output is now gone, so I bought a cheap DisplayPort to VGA adapter and tried that. To my amazement the CRT powered up and works. Some familiar noises...
Problem number one was what resolution to use. Since this model can only do 70kHz refresh, the best resolution is probably 1024x768 at 85Hz.
I noticed another issue here - Windows 10 thinks that it is a 'Generic PnP Monitor' and the EDID data is not loaded properly. Maybe something to do with the adapter I was using. After ages of looking for a driver (there isn't one), I eventually unplugged and re-plugged the adapter and it detected it as a similar screen, but most importantly unlocked the 85Hz option with a working driver. Great, no more visible flicker. Until I reboot. Perhaps I'll solve that later.
So, then onto the screen itself. It appears that it has lost some brightness over the years (vs my hazy memory) and also the geometry has some issues that aren't correctable with the OSD, so I think probably some aged capacitors causing issues. There is a 'sag' to the top of the image that can't be adjusted out. Only noticeable in the desktop, barely at all in games. Forget about using it in a bright room. Also due to the moulded-in VGA cable, it's probably not the best connection and things aren't too sharp.
However, load up a game and things change. Once you're into the game and setup at 85Hz, this thing is a joy to use. So smooth and fluid. It's hard to explain the difference to an LCD but the movement is smooth and clear. I've tried this with some older stuff (HL2) and some newer games (Hitman, GTA5) and have just started to re-play many older games as they look and play so well. The input lag is also minimal to none. For instance, I'm playing Max Payne and moving the camera around and things are fluid and retain clarity. On an LCD you get blur and the game frankly doesn't play as well. Also worth saying that although the resolution is low, the games still look nice due to how the screen works. You can get away with very low resolutions and still have something that looks detailed and playable.
For comparison, my LCD is a Samsung P2450H which is an older 1080p fast refresh TN panel.
I'm surprised there isn't a dedicated thread on CRTs on this forum since I think although we got our desks back, we lost something in moving to flat panel displays. There is an active-ish community on reddit but otherwise just folks starting to charge silly amounts (that aren't worth it for a product so old that can die any moment) on fleabay.
For me, I'd like to find a 19" model that can maybe do higher res and refresh rates, then I'll be fully happy, but for now, the CRT monitor I have is proving a great companion for any of my PC games, but especially the older ones.