thanks for your clarification and I know your user scenario.

I think there are something special configuration on your igel OS 11 system. Could you please double check the file under the path /usr/lib/vmware/view/pkcs11 and tell me the result? I suspect that maybe you had added some other PKCS11 modules into this path so horizon client will automatically open the smart card login dialog even no physical smart card reader plugin.

thanks,