I was using my MacBook Pro 2019 model yesterday on my Spectrum using USB-C. I had no issues at all. Last night, I decided to upgrade the firmware on my monitors to version 104 just to keep up to date. However, today now the monitor keeps flickering to black as if its losing signal temporarily. Disabling HDR on the monitor via Mac System Settings seemed to fix it.
Nothing has changed on my hardware, cables or anything other than upgrading to Firmware 104, so that seems to be the cause.