Pointer lock - unexpected, large movementX/Y when in webview2

What happened?

Using pointerlock API https://w3c.github.io/pointerlock/ we see a buggy behavior on certain machines in our development team, even though we all have the same model, OS:

Can be reproduced with the pointer lock demo: entering pointer lock and moving the mouse slowly inside the canvas. This should result in a smooth movement and only minimal values in movementX/Y event. But on some machines we see large jumps, see video "BugCase". On the same machine with the same WebView2 runtime as Edge, the demo running inside edge browser does not show those jumps, see "PointerLockDemoInMsedge". Seen in our own Win32 app but can also be reproduced with the WinForms browser.

Same demo running in MS Edge browser:

Importance

Blocking. My app's basic functions are not working due to this issue.

Runtime Channel

Stable release (WebView2 Runtime), Prerelease (Edge Canary/Dev/Beta)

Runtime Version

118.0.2088.46

SDK Version

2106.0

Framework

Win32

Operating System

Windows 10

OS Version

10.0.19045

Repro steps

Use WebView2WindowsFormsBrowser from WebView2 examples and replace the assets with those here, then click the "Test pointer lock" link below the heading. Enter pointer lock by clicking into the canvas and move mouse slowly in the canvas region, on some machines we see large jumps (watch the movement values in the upper right).

assets.zip

Regression

Don't know

Last working version (if regression)

No response

AB#49538068