It helps if your problem is only the visuals, but sadly reduce motion keeps all the delays the same. There's a 1.5 second delay when switching spaces with the touchpad gesture (on 120Hz screens; the animation takes longer the higher FPS it's running at), and that animation turns into a 1.5 second fade animation with reduce motion. The new space doesn't gain focus any faster.

Ouch, I remember that you could change the animation duration / animation scale using a terminal command.

I don't remember the details, but it was similar to the approach from this (very dated! please search yourself) article: https://osxdaily.com/2012/02/14/speed-up-misson-control-anim...

Yeah, it used to be possible, but hasn't been for a long time. There are some old stackoverflow posts with `defaults write` commands in them, but they don't work anymore.

I used to be a fairly heavy spaces user with 60Hz macbooks; the delay was too high, but just low enough to not drive me completely insane. But after I got one of the new 120Hz ones, I've almost entirely stopped using spaces, since I just can't stand the extremely long wait where my keyboard inputs still go to the application I'm coming from.