I am working with Lightroom CC (Ver. 3.3). This is the web based version. I still do not know how to call it, as the "classic" version has the same name. My system is a Mac working on Catalina 10.15.5.
I have scanned and imported lots of analog fotos. Now I want to rename them according to my nameing-philosophy. I am still used to the very helpfull tool in my older Lightroom-Version. I did not expect it to be as easy as that. But now I do not find any possiblility to change filenames in Lightroom CC. This can not be true!
You can do it but only by exporting copies – see web image below. If you select a batch and choose Share >> Export (icon top right) you can select a custom name for the batch and Lightroom will automatically add a sequential number to the custom name e.g. 01, 02 etc.
And as far as "official" names of the programs is concerned, Lightroom Classic is the official name of the program that stores everything locally and Lightroom is the official name of the program you are using. However, many of the tutorials still refer to Lightroom as Lightroom CC. Even Adobe can't get it straight, so how can they expect users to do so?