Hi Krita team, with Krita 3 beta complied from AUR on Antergos, unchecking "Show Assitants Previews" in the "View" menu is no longer working : preview line is still visible, whatever the assistant used. But hide the assistant one by one by clicking on the eyes with the assistant tool is working ;) So this should be fixed to act as a global operator, or be removed from the menu… Thanks for you work !
*** This bug has been marked as a duplicate of bug 361653 ***