Back in 2011 you could use a second iMac is a monitor in target display mode, that went away, why should the user expect not to be able to use target display mo

Back in 2011 you could use a second iMac is a monitor in target display mode, that went away, why should the user expect not to be able to use target display mode for every iMac? Things change unfortunately and the single display restriction of M1 was advertised heavily online and can be a pain point but it's listed online as a spec.