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docs: discoverability of chromium switches (#44947)

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* docs: document discoverability of chromium switches

* docs: fixed typo

* docs: reference chromium endorsed list of swithes

* docs: reorder command-line-switches

* fix: address review

* fix: typo

* fix: wording

* Update command-line-switches.md

fix: lint space

* fix: Update docs/api/command-line-switches.md

Co-authored-by: Keeley Hammond <vertedinde@electronjs.org>

---------

Co-authored-by: Keeley Hammond <vertedinde@electronjs.org>
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docs/api/command-line-switches.md
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@ -331,6 +331,22 @@ Affects the default output directory of [v8.setHeapSnapshotNearHeapLimit](https:
Disable exposition of [Navigator API][] on the global scope from Node.js.
## Chromium Flags
There isn't a documented list of all Chromium switches, but there are a few ways to find them.
The easiest way is through Chromium's flags page, which you can access at `about://flags`. These flags don't directly match switch names, but they show up in the process's command-line arguments.
To see these arguments, enable a flag in `about://flags`, then go to `about://version` in Chromium. You'll find a list of command-line arguments, including `--flag-switches-begin --your --list --flag-switches-end`, which contains the list of your flag enabled switches.
Most flags are included as part of `--enable-features=`, but some are standalone switches, like `--enable-experimental-web-platform-features`.
A complete list of flags exists in [Chromium's flag metadata page](https://source.chromium.org/chromium/chromium/src/+/main:chrome/browser/flag-metadata.json), but this list includes platform, environment and GPU specific, expired and potentially non-functional flags, so many of them might not always work in every situation.
Keep in mind that standalone switches can sometimes be split into individual features, so there's no fully complete list of switches.
Finally, you'll need to ensure that the version of Chromium in Electron matches the version of the browser you're using to cross-reference the switches.
[app]: app.md
[append-switch]: command-line.md#commandlineappendswitchswitch-value
[debugging-main-process]: ../tutorial/debugging-main-process.md