My 10 year old Mid 2012 MacBook Pro can handle the equivalent of stage manager + extended displays... in fact Macs back to the 1990s have been able to do this, yet iPads that Apple touted as 'desktop class' etc etc somehow can't? iPads that are supposedly so much faster than my 10 year old Mac?
That’s technically incorrect - your MBP from 2012 was running a display resolution of 1280x800 and could drive a single external display at 2560x1600. That’s a total pixel count of 5,120,000.
The M1 iPP is running a native resolution of 2732x2048 (which is already pushing more pixels than the 2012 MBP can support, even with external display) and a 6k XDR display at 6016x3384….that’s a total of 25,953,280 pixels or 20,833,280 more pixels than the 2012 MBP.
Add in all the transitions and 3D effects and, well, it’s just not possible that a 2012 MBP can run stage manager at the same standard.