Another user [wrote that "copy-paste between host and client (checked that enabled in config) doesn't work either."](https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1873922/comments/3) "using VirtualBox Guest Utils 6.1.6 and Ubuntu 20.04" (https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1873922).
Another user [wrote that "copy-paste between host and client (checked that enabled in config) doesn't work either."](https:/ /bugs.launchpad .net/ubuntu/ +source/ virtualbox/ +bug/1873922/ comments/ 3) "using VirtualBox Guest Utils 6.1.6 and Ubuntu 20.04" (https:/ /bugs.launchpad .net/ubuntu/ +source/ virtualbox/ +bug/1873922).