Do the components support high dpi?
Yes, ShellBrowser components support high dpi up to per monitor v2, which was added in v6.2.
Follow the instructions here for the configuration of your project.
In order to work correctly your project needs to target .NET Framework 4.8, which contains some important fixes.
For WPF, you need the following additions to your application.manifest to activate high dpi per monitor v2:
<asmv3:application xmlns:asmv3="urn:schemas-microsoft-com:asm.v3" >
<dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2, System</dpiAwareness>