I think they removed the Customisation for Always on Display in new update since I cannot find anywhere to edit like from settings and Goodlock app. I am on S21 Ultra

I am using S21 Ultra and recently updated to One Ui 7 and the i wanted to turn on the home screen Landscape mode but its disabled completely. Can anyone help?

I got the update today and I have been using this phone for 2 hours and first thing I realised is the battery got a bad hit it drains Quick now. Before in Ui 6.1, in 2 hours the battery would go from 100% to 75% or 70% but after the One Ui 7 update, ...

I live in Dubai and use Galaxy S21 Ultra South Korean Version and I wasn't expecting the new update till May last 

Even though I live in Dubai my phone is a South Korean version of S21 Ultra. So anyone has any idea when we going to get Android 15?