amule install on ubuntu 20.4

You can download its packages from Ubuntu 19.10 and install them manually:

mkdir -p ~/Downloads/amule
cd ~/Downloads/amule

wget http://old-releases.ubuntu.com/ubuntu/pool/universe/a/amule/amule_2.3.2-6_amd64.deb
wget http://old-releases.ubuntu.com/ubuntu/pool/universe/a/amule/amule-common_2.3.2-6_all.deb
wget http://old-releases.ubuntu.com/ubuntu/pool/universe/w/wxwidgets3.0/libwxgtk3.0-0v5_3.0.4+dfsg-12_amd64.deb

sudo apt-get install ./*.deb

Does this mean that amule will longer be available in Ubuntu 20.04+? – @FedonKadifeli May 10 at 9:49

For Ubuntu 20.10 it's already available (https://packages.ubuntu.com/groovy/amule)