Thank you very much Ang because I believe it was your suggestion that solved mine problem !!!Just in case someone wants to follow my steps resolving this super frustrating situation this is what I did :
My tv model LG OLED55B7V, bought it 2 months ago , started crashing Netflix app again and again ...
1) turned off FAST STANDBY/OPEN
2) turned off WIFI , I have only Ethernet
3) did factory reset
And still the same ....😫😫😫
...but then I did what Ang suggested and voila!!! Problem solved . I watched a full episode of OZARK and Netflix app was fine .
I will report back if anything goes south the rest of the day ...
thanx again Ang!!