I've had W11 at work for well over a year and had the explorer freeze happening for the first time yesterday. I don't think it's a big issue. What frustrated me the most is that credential guard broke mschapv2 authentication, forcing us to change the wireless authentication to certificate based but we've had non-stop issues with that.

During testing this didn't even register because it doesn't outright break the authentication flow, but (according to the official Microsoft documentation) it "might" break it. So after introducing W11 we started getting people where wireless worked fine one moment, and then it would disconnect and refuse to reconnect. Reinstalling the NIC drivers solved it for some time, but inevitably it would happen again, but sporadically and no obvious reason for it.

So we switched to EAP-TLS as per Microsofts recommendation and it has a whole range of new issues, mainly frequent re-authentications. We deployed a temp wifi now which is just password based to figure out wtf is going on, but this issue has been the bane of my existence for months now.