Windows 11 problems

Our church has been using Zoom for several years.  Since moving the host computer to Windows 11 from Windows 10, the host program begins to video-freeze after 20 minutes and then crashes Windows completely -- not a blue screen, a black one.  When we switch back to a Windows 10 host on the same internet provider, the system is quite stable.  We are "religious" about doing updates for Windows and Zoom.  For the moment we are considering Zoom to be incompatible with Windows 11.