Your system information

• Steam client version (build number or date): 1780352834
• Distribution (e.g. Ubuntu): Arch Linux
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes
• Steam Logs: steam-logs.tar.gz
• GPU: Nvidia/Intel/AMD

Please describe your issue in as much detail as possible:

The new Steam controller has very weak rumble especially when the Steam client is open.

I occasionally play some non-Steam games via the Heroic launcher. The max rumble already feels weaker than the test rumbles you feel when pinging the controller or when turning the controller on. However, the rumble gets even weaker when Steam is open at the same time and applying its controller profiles.

The rumble strength needs to either get a bump in strength across the board or it should be configurable in the controller settings. By default the max strength should either match the rumble strength that you get when using the controller without Steam running OR more preferably, it should match what you experience when pinging the controller, which feels strong and intense.

Steps for reproducing this issue:

1. Make sure Steam is not running
2. Play a non-Steam game (in my case I was testing with Zenless Zone Zero via the Heroic launcher)
3. Experience the rumble during combat. Note that it is much weaker than the controller ping rumbles
4. Launch Steam. (It is optional whether you need to quit the game at this point. In my testing, I did quit the game, launch Steam, and then relaunch the game)
5. Experience the rumble again in the same game. Note that it becomes even weaker.