The incompatibilities that I spoke of are the hardware incompatibilities that keep the old laptop from being able to run Windows 11. I like the small changes to the user interface in Windows 11, but it is not difficult to go back and forth, and if it it really bothers you, you can configure Windows 11 to look like Windows 10. As I replaced my ancient systems one by one over 18 months, I was constantly switching back and forth between 10 and 11. My wife is not technically oriented. She adapted quite nicely from the Windows 10 laptop to the Windows 11 laptop, after I explained some tof the differences. The main reason for migrating to Windows 11 is that Microsoft is going to drop support for Windows 10 in a few years. I would move to Windows 11 on any computer that has the necessary hardware.