Don't dwell on the weight of obsolete history, it'll only prevent you moving forward. Modern displays are better for most purposes.

It's fine to mourn physical movie media, or vector displays, or PEEK/POKE, because those had good sides, but CRTs in general-purpose raster use have absolutely no advantages. They don't need to be controversial like social media or AI.

It's fine to preserve some in a living or dead museum too.

By the way HDMI or DP protocol is not crazy to implement on an FPGA. It's a very similar idea just with bit-serial digital streams instead of analog. Many FPGAs contain SERDES I/O blocks that can take a 24-bit medium-speed digital signal very similar to the one you feed to your VGA DAC, and convert it to a high-speed bit-serial differential form for transmission to the display.