I think it will be resolved in beta 2I have submitted feedback ,If possible you also submit beta feedback

But till now, No heating issueI was thinking after reading views and its a beta software that it will heat and battery life will be badBut till now battery life is not that much as compared to one ui 6.1 But good and heating i didn't experienced

Yes now I got option ,Actually after updating it was not availableBut now available

But till now there was no visual change in one ui 4 and 5 but there Is a major visual change in one ui 6 .So they are requested to please provide it