Your system information

• Steam Runtime Version: 0.20200417.0
• Distribution: Ubuntu 18.04.4 LTS (64 bit)
• Link to your full system information: https://gist.github.com/DanMan/df94fe2dc319aad76fc097c2f90e6329
• Have you checked for system updates?: [Yes]
• Opted into Steam client beta?: [Yes]

Please describe your issue in as much detail as possible:

If you have a game set to update only when launching it, Steam will download the pre-compiled shaders nonetheless, if you update your (NV) GPU drivers.

Since the point of that setting is usually to postpone downloads, it should probably not download shaders either until the game is launched.

Steps for reproducing this issue:

1. Set a game that has pre-compiled shaders (DoA 6 for example) to "update only on launch"
2. Update your GPU driver
3. Open Steam and watch it re-download the compiled shaders for that game.