LR for Mac storage location for Previews.
I have a Mac Studio M1 running Sonoma and several external SSDs.
I am in the process of leaving LR Classic and using LR for Mac exclusively. I have dragged across all my photos from Classic to albums in LRfM so that I now have all my edited originals in the Adobe cloud (635GB) as well as originals in an external SSD.
I am dismayed to find that previews are kept in the PICTURES folder in Lightroom Library.lrlibrary. This is now running at 250GB. I simply do not have enough room on my home drive for this! Yet LRfM does not give me any options to keep this library on an external SSD! How can I force LRfM to allow me to keep previews externally, since without this option I will be unable to add any new photos at all.
