Ubuntu - update hyperion.ng not working

Hi,
I've been running hyperion.ng alpha 5 for a while on Ubuntu 20.04. Now I want to install version 7. I do that by downloading the latest .deb file and running the following command from the deb file's location:
[H]sudo apt install ./Hyperion-2.0.0-alpha.7-Linux-x86_64.deb[/H]
All good so far, no errors. Then, when I click on the Hyperion icon on the desktop, Hyperion alpha 5 launches.
So aperently alpha 5 is still located somewhere on the system. I followed the official guide and ran the uninstall command
[H]sudo apt remove hyperion \[/H]
Again, not errors, but even then after reinstalling alpha 7, alpha 5 launches when I click the desktop icon.
How do I proceed from here?

nvm! Turns out it's because on this system I previously compiled hyperion. I don't understand much of linux structure but it was in some other obscure location that I now found and deleted.