Tried mkusb persistent using focal-desktop-amd64 20200223, changing partition label from "casper-rw" to "writable". This time it worked, Now have persistent partition labeled writable. Home stuff and installed programs are persistent.
Create an additional partition labeled home-rw, home stuff went there while downloaded programs went to writable similar to having casper-rw + home-rw partitions.
Tried mkusb persistent using focal-desktop-amd64 20200223, changing partition label from "casper-rw" to "writable". This time it worked, Now have persistent partition labeled writable. Home stuff and installed programs are persistent.
Create an additional partition labeled home-rw, home stuff went there while downloaded programs went to writable similar to having casper-rw + home-rw partitions.