What’s New in ACR 12.3
Adobe made some very significant changes to the Adobe Camera RAW [ACR] interface and functionality with its release of version 12.3 on 16 June 2020. It’s all very differnt to what you’re used to. So if you haven’t managed to find your way around it this [rather enthusiastic] YouTube video gives a good overview. If you want to dig deeper there are 4 further videos from the same author and the first is here.