Qualcomm distributes software through its developer network: developer.qualcomm.com. More recent software requires the use of a dedicated package manager (QPM, the Qualcomm Package Manager). The QPM available from developer.qualcomm.com for Linux (version 2) as a .deb package is not installable on Ubuntu 22.04.
I tried installing QPM 2 and it missed a dependency (gnome-keyring0) that is apparently not installable on Ubuntu 22.04. Hence I removed the QPM 2 package.
Qualcomm Package Manager version 3 is required for Ubuntu 22.04. I could download it from its own page: https://qpm.qualcomm.com/#/main/tools/details/QPM3