I can confirm the issue exists as of yesterday on Beta 10, and two days ago on Beta 9 when trying to install on Ubuntu 22.04. Installs fine on 20.04, using exact same download file and procedures. I bought a new machine, wiped it, and set up a brand new fresh Ubuntu install days ago and ran into this issue.
I did not try to install Wappler 4, but I found posts like this one indicating the issue did not start in the beta.
I think the issue is in the naming of the dependencies as listed in the dpkg resources. I found a guide on an ubuntu forum when I ran into this issue that I can’t find now, and the solution they provided for installing Wappler 4 on Ubuntu 22.04 was to manually remove the dependencies from the installer’s package resources (since the dependencies that can’t be installed are met by Ubuntu 22.04 by default, just named differently and much higher version numbers).