We have an App that uses WKWebview component on Mac OS.
One of our customers recently noticed the keyboard input in the WKWebview is not working correctly.
When the Delete or up/down/left/right keys of keyboard are used in a text field they do not give the normal action, but instead a strange symbol is added to the text field.
So it looks like a bug was introduced in the keyboard handling of WKWebview.
We have checked this on two Mac OS 12.3.1 systems and both show this issue.
On another system running Mac OS 10.15.4 we don't see this issue.