Hi, sadly I am running in trouble with a multiple user setup too. Please forgive me for cross-posting, I'll just put my observations here FYI, so maybe somebody will eventually find out what the issues is for us multi-user users.
I have a total of 4 users. Minimizing/Switching Apps takes up to 10 seconds. Sometimes it works instantly (as it should), sometimes it takes so much time. I had to turn off gesture navigation because it is so unresponsive that it simply is unusable. The wired thing is that in the classic navigation, if you press a button, it will make a sound instantly, so it did notice that button press without delay. But it will take the phone forever the execute it. Another interesting thing is that the menu (I don’t know how it is called... if you swipe from the top) always comes up instantly. Rebooting does help, but at some point in time the lagging creeps back in.
I don't have Google Play Services in the admin account, but in the other user accounts. There I also have instant messaging apps as WA.
I don't know how to debug Android, but sth. must be throwing a timeout I assume? It doesn't feel like the CPU or memory is clogged up.
Device is a Google Pixel 7.
Build UP1A.231005.007.2023101300