Many css built-in cursor type are not supported with WebView2 in WinUI3

[HO-COOH]

Describe the bug

Use a webview2 and go to https://developer.mozilla.org/en-US/docs/Web/CSS/cursor, and you can see how many of the built-in CSS cursors are not shown correctly with WebView2, but they do with Edge. Related to #8196, but these are not mentioned in that issue. Some of them include:

zoom-in
zoom-out
grab
col-resize
row-resize

Steps to reproduce the bug

Hover to rows of this area

Expected behavior

Should behave the same as Edge

Screenshots

No response

NuGet package version

WinUI 3 - Windows App SDK 1.5 Experimental 1: 1.5.231202003-experimental1

Windows version

Windows 11 (22H2): Build 22621

Additional context

No response

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Closed similar issues:

• Cursor is not changed in webview2 (#8196), similarity score: 0.84
• Click WebView2 on UWP may hide cursor (#6168), similarity score: 0.78
• Possible bug on webview2. (#5410), similarity score: 0.76

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[HarlanHugh]

This is also a problem for BlazorWebView. This is a significant issue for our app.

[HarlanHugh]

It's been 6 months. Can we get some attention on this please?

[codendone]

Documentation for CSS cursor limitations for WebView2 in WinUI2 also apply to WinUI3. The problem is that there is currently isn't a way for these custom cursors to be communicated from the CoreWebView2 process to the WinUI host. ("custom cursors" here means a cursor not in the CoreCursorType enum.)

This is something we'd like to fix at some point, but we don't have a timeline for that.