The analog RGB signals from an Amiga are so standard that you can easily break them out and plug into almost any analog RGB monitor, including any decent VGA monitor with an off the shelf adapter. Composite support is an aberration and no one in their right mind would run an Amiga using composite only for any significant period of time, and it has always been that way. It was a waste of hardware, they should have left it out, almost no one ever used it.
Of course these days HDMI conversion is better, but that is also the case for nearly any video signal you want to display from more than a couple of decades ago.
I use composite on my A1200 because RGB -> anything means trouble with signals and latency. My GV-USB2 capture dongle has zero latency and I only play games.
Of course these days HDMI conversion is better, but that is also the case for nearly any video signal you want to display from more than a couple of decades ago.