Unable to enable-experimental-web-platform-features by command line for chrome

Question

I am not able to enable-experimental-web-platform-features flag by command line. I am using different user profile which is not the default one of chrome.

I am doing this by following:

"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --user-data-dir=D:/dev/chrome/profiles/sahi0 --enable-experimental-web-platform-features --incognito

Answer 1

From a comment by the OP:

Turns out it was working, but it was not replicated in chrome flags. So I was under impression that it's not working at all.

One cannot evaluate whether these items are working by looking only at chrome://flags; one needs to test actual functionality in practice.