[Steam Deck] Achievement progress row is missing from the game-details header

[beallio]

Your system information

Steam client version (build number or date): 1785799196 (Aug 3 2026 19:41:13)

• Distribution (e.g. Ubuntu): SteamOS 3.8.16 (build 20260716.1)
• Opted into Steam client beta?: No (steamdeck_stable)
• Have you checked for system updates?: Yes (no updates available)
• GPU: AMD Custom GPU 0932 (RADV VANGOGH)
• Steam Deck model: OLED

Please describe your issue in as much detail as possible:

The compact achievement summary is missing from the default game-details header in Steam Deck Gaming Mode. This is the native row that previously appeared next to LAST PLAYED and PLAY TIME, showing ACHIEVEMENTS, the earned/total count, and a small progress bar.

Expected behavior

For an installed Steam game with achievement data, the game-details header should show the compact achievement summary alongside the other game stats. Selecting it should navigate to the game's achievements section.

Actual behavior

The header shows the other game stats, but the achievement summary is absent. The game still has achievement data and earned progress; only this compact header row is missing.

This appears to be a client UI regression rather than missing achievement data. The native MiniAchievements component and its data path are still present and can render the correct live total. On the Steam Deck game-details path, however, the header provides no onSeek callback, while the component now returns nothing when that callback is absent:

if (!this.props.onSeek) return null;

The guard appears to have been introduced around Steam client changelist 10546225 (approximately 2026-03-24). Passing the app-details section-navigation callback to this component, as other app-details contexts do, should allow the native row to render and remain navigable.

Steps for reproducing this issue:

1. Start a Steam Deck in Gaming Mode with all third-party extensions disabled, then restart the Steam client.
2. Open Library and select an installed Steam game that has achievements and non-zero earned progress.
3. Open the game's default details/landing page.
4. Look at the stat row beside LAST PLAYED and PLAY TIME.
5. Observe that the ACHIEVEMENTS earned/total count and progress bar are missing, even though the game's achievement data is available elsewhere in the client.