If you don't add a latency-inducing plugin after side-chained plugin, it works fine. so it is better, but it's still not perfect.
I actually got a direct response from apple after submitting feedback yesterday so i'll send them this video and I also need to enclose the project - first one for me.
But what is the case for me when the latency intrusion plugin IS the side chain plugin (soothe 2 for example)
For me it's broken.
Me putting soothe 2 on a mixbuss to which all instruments are routed, but vocals go to stereo out. mixbuss goes to stereo out, too. sidechain soothe on the mixbuss with the vocals. Killer delay introduction immediately. Very disappointed. Big sur, Rosetta, old project.