To hide a progress bar explicitly, you call Write-Progress -Completed

Doing so currently requires that an -Activity argument be passed as well, even though that shouldn't be necessary, given that such an argument is only relevant for displaying the progress bar, not when hiding it.

Therefore, Write-Progress -Completed by itself should be sufficient to hide a progress bar (potentially combined with -Id to disambiguate, should multiple ones have been created).

Steps to reproduce

foreach ($i in 1..10) { Write-Progress $i -Activity foo; start-sleep -ms 100 }
Write-Progress -Completed
'Done'

Expected behavior

The progress bar should display, then disappear, followed by output 'Done'.

Actual behavior

Write-Progress -Completed unexpectedly prompts for an -Activity parameter value.

Environment data

PowerShell Core 7.2.0-preview.5