Samsung — Smart Phone

Bought a Samsung phone Galaxy Note 20 Ultra on the 27 December 2020, everything was fine till I installed an update and immediately a green line started appearing on my screen! I tried my best to switch off, restart everything BUT the green line still persists destroying a very expensive phone, is this being done deliberately to force people to buy new phones.. if so it is a very cheap trick by Samsung and I will lose all faith in the company. I searched the net and found that this issue has cropped on many Samsung phones after an update .. this goes on to confirm that there is something fishy going on from the Samsung company.