TextBox unaligned text

[OnlyOnePro]

Describe the bug

The TextBox's placeholder and content text do not center-align vertically when indicated. Changing it to bottom doesn't appears to work either.

Steps to reproduce the bug

Steps to reproduce the behavior:
Create a TextBox as provided by the below snippet on a Blank Page

            <TextBox x:Name="SearchBar" 
                     HorizontalAlignment="Stretch" 
                     Grid.Row="0" 
                     Grid.Column="0" 
                     Grid.ColumnSpan="4"
                     VerticalAlignment="Stretch"
                     HorizontalContentAlignment="Left"
                     VerticalContentAlignment="Center"
                     PlaceholderText="Text that should be centered"/>

Expected behavior

The text should modify its centering relative to the control itself.

Screenshots

Version Info

NuGet package version:

[Microsoft.UI.Xaml 2.6.0]

Windows app type:

UWP	Win32
Yes

Windows 10 version	Saw the problem?
Insider Build (xxxxx)
October 2020 Update (19042)	Yes
May 2020 Update (19041)	Yes
November 2019 Update (18363)	Yes
May 2019 Update (18362)
October 2018 Update (17763)
April 2018 Update (17134)
Fall Creators Update (16299)
Creators Update (15063)

Device form factor	Saw the problem?
Desktop	Yes
Xbox
Surface Hub
IoT

Additional context

This is a similar issue to #3284.

[ranjeshj]

@chingucoding @StephenLPeters This looks like an issue we have looked at before. Was this never fixed ?

[StephenLPeters]

Duplicate of #5369

[marcelwgn]

The trail leads down to #3383, however I am not sure why we reverted that. @beervoley might remember more.

[nor0x]

any updates on this? I tried VerticalContentAlignment but it doesn't change the placeholder position

[github-actions]

This issue is stale because it has been open 180 days with no activity. Remove stale label or comment or this will be closed in 5 days.

[nor0x]

This issue is stale because it has been open 180 days with no activity. Remove stale label or comment or this will be closed in 5 days.

still open!

[DmitriyKomin]

Duplicate of #6324