I really can't pretend to be an existing customer, but I must add to the comments of others who are disappointed by the seemingly arbitrary choice to cut off OS 10.14 Mojave. Beyond Mojave, Photoshop CS6 ceases to function. Photoshop Elements (non-subscription) will run but does not have pen or shape tools. I didn't quite like Designer 1 enough to choose it over Inkscape, and now I've no idea if Designer 2 is worth going to the great trouble of virtualising just for the sake of it. Have to assume not.
There might be some inherent feature about Catalina that makes it difficult to support Mojave, but for the life of me, I don't know what it is.