I successfully installed One UI 8 on my S21 FE in this morning, no green/ pink lines on screen.I just put my phone in freezer 5 minutes before installing and updating, then click on install one ui 8 and put again it in freezer after successfully upda...

These devices will get one ui 8 update in 5th wave and also date is mentioned.

According to samsung.com and many other trusted websites like- GSMArena, sammymobile etc.