Could user selectable database location and image thumbnail location be added as an advanced option in catalog settings? Ie so we've able to select where to store the database and also where to store the image thumbnails? Not everyone has huge amounts of storage on fast solid state drives available. My database and thumbnails are around 200Gb and that's a lot to commit to with the cost of fast storage. It would be good to be able to store the 15Gb database on the (expensive) NVME drive and the 185Gb of thumbnails on a (cheaper) fast hard drive.
You can specify a location when you first create a catalog. When you go to Manage Catalogs, you can add a new catalog to a location you specify, and you can locate a catalog that you may have moved.