yes, exactly same problem. i believe that this is a hardware problem that is faced by 2017 models too.
It is not going to help. I had tried all means. I strong believe this is the same issues as 2016 macbook pro.
need to go thru apple only can get fix it.
my country the apple shops are closed still, so i could not send in to them and demand for a fix. I had sent in my macbook pro to an authorised apple service centre to check, they run some diagnosis test on my macbook, and told me that there were nothing wrong with my macbook including display or graphic card. worst part i could not simulate the problem on the spot. as this problem will recur over time, sometimes back to normal, sometimes the flickering problem recur.
they said if i insist need to fix, i need to leave my macbook there for deeper diagnosis test and this will incur cost. and if replacement display needed, it will cost a lot too.