No controller input in 1.16.0 SNAP installer for Ubuntu

Description

After installation using snap installer in Ubuntu 22.04 (latest stable release as of now), xbox controller not detected by RetroArch front-end. Linux can see the controller ok, and the apt installer of RetroArch (v1.7.3) on the same machine can see controller ok. This is after updating all cores, settings, databases etc in online updaters and restarting RetroArch, and rebooting machine.

Expected behavior

Controller detected by RetroArch

Actual behavior

Controller not detected.

Steps to reproduce the bug

1. sudo apt get install retroarch
2. launch retroarch
3. update everything using online updater
4. restart retroarch
5. Settings -> Input -> Retropad Binds -> Port 1 Controls -> Set all Controls
6. System does not respond to any input on controller

Bisect Results

Happens in 1.16.0 release with snap installer on Ubuntu 22.04

Version/Commit

You can find this information under Information/System Information

• RetroArch: f427aaee8f

Environment information

• OS: Ubuntu 22.04 for x86 64bit, runing the KDE desktop on Xorg server
• Compiler: N/A (used prebuilt snap install)

Reproduce the issue with the snap installer on Ubuntu 22.04 using the listed controller and input-binding steps, then compare the result with the apt installation. Start by checking RetroArch's System Information and the differences between the two installation methods. Done means the Xbox controller is detected and responds to Port 1 controls in the snap installation.