Whereas the VGA standard defines the RGB signals along with a VSYNC and HSYNC signal, the Apple version can generate HSYNC, VSYC, but also CSYNC (composite sync). Which sync signal is generated ...

It works, and it looks good, too. VGA signals are just lines and frames, with RGB pixel values stuffed in between horizontal sync pulses, and frames stuffed between vertical sync pulses.

with x3 included XPG VENTO 120 ARGB Fans • 3mm Tempered Glass Side Panel • Support Vertical and Horizontal VGA Installation • 22.8mm Depth for Cable Management SPECTRIX D50 XTREME DDR4 RGB ...

The Raspberry Pi 5 already has composite video out, but now it can do interlaced RGB via DPI for sharper CRT output via SCART ...