After got a update for Samsung m20 Oneui android 9.0 it was bit exciting because previous os for m20 was highly optimized for m series. But no such optimization for oneui. Everything is pretty fine but oneui on m20 has some minor lags when opening app drawer, switching between apps and some times not responsive touch also. I hope they'll fix this issue by pushing a update soon. Samsung its a humble request please fix this lags fast, one ui is truly awesome. If this minor animation lag fix and optimization will done this could be great🙏
P.S - I am Using M20 4gb 64Gb and i already reseted my phone after update.
Comment if you having same issue, might they see this and fix this things.