can't install from deb on ubuntu 22.04 due to unmet dependencies (libgranite5)

[dste]

Describe the bug :
-1 i've tried to install it with ubuntu gui
=> failled with unclear message

-2 i've then tried to install it via command line

sudo apt install ./com.github.bcedu.vgrive_1.6.0_amd64.deb
[...] some packages can't be installed
[...] libgranite5 (>= 5.2.3) is not accessible

-3 i've tried to install libgranite5

sudo apt-get install libgranite5
[...] package is missing or obsolete
[...] otherwhere libgranite6 replace it

see : https://launchpad.net/ubuntu/jammy/+source/granite

Desktop (please complete the following information):

• OS: ubuntu 22.04
• VGrive Version v1.6 installed from .deb

i didn't try to install libgranite5 from another source by not knowing the rigth way to do it and by fear of braking my system
i didn't try to install libgranite6 thinking it would not do anything