To ease the transition, many existing Windows applications will just work on an Arm-based PC. And by “just work,” I mean it — you can double-click their installers and run them like normal. Unless you dig into the process details in the Task Manager, you might not even know you’re using an x86 application.
But that support only goes so far. Certain types of apps won’t work in the Prism translation layer and aren’t functional. Some hardware devices might not work with these PCs either. Plus, some heavy-duty professional applications could be slowed so much by that translation layer as to be unusable.
Chris Hoffman, IDG
Qualcomm Snapdragon Arm Copilot+ rule #2: Some apps will have problems
There are a few types of applications that are guaranteed not to function properly through Prism. They will work if developers port them to Arm — but there’s no guarantee developers will bother, especially for existing business apps.