Hello! Hopefully soon I will package this software in .deb and .rpm
For the time being, you would need to make pum binary file executable with chmod +x and then run it (double click or from terminal)
I had to upgrade to 22.04 from 20.04. Took a while but worth it File search in Nemo (my most used features) is significantly enhanced. And now I can use PUM Companion.
Oh! Glad to hear, 20.04 was certainly too old, also good for safety not to be so behind! I hope you like the app!!