Your system information

• Steam client version (build number or date): 1726683985 (Stable) / 1729917543 (Beta)
• Distribution (e.g. Ubuntu): SteamOS 3.6.19 / 3.7.0 (Deck) and Manjaro w/ Gnome 46 (Desktop)
• Opted into Steam client beta?: Issue is present on both Stable and Beta
• Have you checked for system updates?: Yes
• Steam Logs: steam-logs.tar.gz
• GPU: AMD Van Gogh RDNA 2.0 (Steam Deck) and RX 7800XT (Desktop)

Please describe your issue in as much detail as possible:

If a title is already running, attempting to launch another title will prompt the user with a choice selection: Cancel launch, Switch to <GAME>, or Launch <GAME> anyway.

Pressing B to Back out will select Launch <GAME> anyway.

Video

https://github.com/user-attachments/assets/5dff0431-c9d4-4d5d-813c-a5dee7f70898

Steps for reproducing this issue:

1. Select any title and press Play.
2. Once the title has launched, navigate to Steam > Home and select another title.
3. Press Play.
4. Once the Running multiple games prompt appears, press B.

Reproduction Rate: 5/5

Affected Platforms

• LCD: Yes
• OLED: Yes
• Desktop Deck-like session (gamescope -e -- steam -gamepadui -steamdeck): Yes
• Desktop: No (This prompt does not appear in Big Picture Mode on Desktop)

Actual result

• Pressing Back / B dismisses the prompt, but behaves as if Launch anyway was selected.

Expected result

• Pressing Back / B should dismiss the prompt and return the user to the Game Details Page. Secondary title should only launch if Launch <GAME> anyway is explicitly selected.
• Alternatively provide an option to close all running titles and proceed with launch.