🧐[Question] ArchLinux 用户可能需要重新导入系统证书

### 在更新至 v3.0.0.rc1 后, ArchLinux 用户可能需要重新导入系统证书
* 导入证书请使用 `sudo trust anchor --store SteamTools.Certificate.cer`
* SteamTools.Certificate.cer 文件位置请参阅 [官方帮助文档](https://steampp.net/liunxSetupCer)

### 该问题可能影响以下用户
* ArchLinux
* Manjaro
* Steam Deck ™
* EndeavourOS
* ......

Start with the official certificate setup guide linked in the issue and reproduce the v3.0.0.rc1 upgrade on an affected Arch-based system. Trace why the system certificate must be re-imported; the issue names no target file, test, or defined fix, so completion requires confirming the expected behavior with maintainers.

Written by the indexing model from the issue text.