I have been used some UI Like Color os , orgin os , and oxygen os . . They are best at its fluidity and modernism.. but One ui at version 9.0 and still looks too much old and lacks fluidity and having too much bugs in A M and F series that samsung didn't fixed till the decades .. if you have used A M and F series phone you will know what I am talking about ... the Ui feels too much laggy and looking like old times .. how ios manages these things 🤔 ..
