I'm using VMware Fusion 11.5.6.
Host is Mac OSX 10.15.6 Catalina and guest is Ubuntu (sorry don't know version number - how to check?) and I can't copy and paste from host to guest.
I thought the problem was VMware Tools because it wasn't installed. After enabling CD/DVD ROM device using linux.iso as the image, I was given an option to install VMware Tools when I booted the VM. A folder named "vmware-tools-distrib" opened up in the VM - I followed the instructions by unzipping the tar.gz file, running ./vmware-install.pl in terminal and got it installed.
After rebooting the VM again with VMware Tools now installed, copy and paste still does not work however.
You could check ubuntu version by 'cat /etc/lsb-release' in terminal.
Bundled vmware tools is dropped for most of Ubuntu guest, please install open-vm-tools instead, 'sudo apt install open-vm-tools'. also there's some problem for wayland, so please do not select 'ubuntu on wayland' as user logging in.