@nazokiyoubinbou @glennmagusharvey Yep... but what is a "major technological change? Something under the hood might not even concern most users. I'd say, a retro system always has some major usage incompatibles with modern everyday habits. Like you can't use MP3 files on a cassette player and you also can't use Windows 3.x to access a normal USB stick. No, you have to A) know how to use other oldschool technologies and B) you have to do without everyday standards and technologies in order to use a retro system.
Another complication is one's personal stand on modern technology. For me, I don't accept many cloud or even AI systems as being an integral part of modern computing. For me, many of these "technologies" are just stupid ideas from idiot companies. So, if someone would consider systems being retro just for using local storage space or for not using A.I.? A horrible thought.