Ubuntu uses ‘.deb’ packages for installing applications on system & RPM is the default package manager for RHEL/CentOS. But can we install RPM packages on Ubuntu? YES, we can.
To install RPM packages on Ubuntu, we need to install a tool called ‘alien’. Alien allows us to convert the ‘.rpm’ packages into ‘.deb’ packages which can then be installed on Ubuntu systems or without converting, alien can also directly install ‘.rpm’ packages onto Ubuntu systems.
See how at https://linuxtechlab.com/how-do-i-install-rpm-packages-on-ubuntu/