Thanks for your guide, in my phone it is little different I have Mi 11 pro with Xiaomi.eu rom and when I go to the apps I cannot see there option for autostart for system apps, only for installed apps. When I go for example to Micloud app, it sends me directly to the app menu itself or in other system apps there is simply not the autostart option. I have looked also directly into the autostart menu and system apps aren't simply there.