2018 Mustang GT intermittent rough idle and stalling issue solved

I had a issue where my idle was going rough on occasion, my check engine light came on for the bank 2 sensor 1 o2 sensor and my dealer said they did the cam phasers, that work was done but the issue remained. I drove the car for 8 months with this issue waiting for a light to come on thinking the other o2 sensor was damaged or something. Eventually the light did come on for the other side o2 sensor but I was running 93 octane at the time so I was kind of confused but I replaced that sensor too. The issue still remained and I was tired of it, so I took it to a different dealer and they tried a misfire relearn procedure, that also did not solve my issue. Eventually they decided to do VCT solenoids after doing multiple tests. This finally solved my issue.