You should check with the MDM provider if they have permissions on the device to allow certain things. I know my company installs some apps on my phone, but I still get the permission dialogs on most of them. One I do not is a security app that comes from IT. It can check my version of iOS and make sure I am not out of date and then prompts me to upgrade if I am.

I doubt there will be a discount, other than a developer discount if you are registered. I haven’t seen the cost posted anywhere yet. It will be interesting. I have a Mac Mini with 32GB of RAM. They didn’t mention emulating the new silicon on old hardware either.

This is terrible solution for hobbyist developers. I have lot of small apps that I don't update all that often. I can still run Visual Studio 2005 on my Windows 10 machine. I would expect Xcode to run for as long as the ecosystem is still needed.

Xcode works for me, but any of my own apps won't launch with this error. I have tried targeting Rosetta, MyMac, and local. I am code signing with a dev cert (Not run local).

Check your connector. Look in the bottom of the iPhone, try using a toothpick to see if there is lint caught in there (happens a LOT). If not, then check the cable. Do the connectors look warn? The lightening end of the cable will wear out eventually (about every 18 months for me). Try another cable.