I will leave you an inquiry about a bug that occurred while using edgebrowser.
The environment in use is as follows:
1. Edge browser ver. 102.0.1245.33
2. Windows10 ver.21H1 (OS build 19043. 1706)
The bug details are as follows:
Special character conversion using the Ctrl key does not work.
I've confirmed that the "Notepad.exe" Ctrl key can convert special characters.