It may be possible for you to try Windows 11 in either a supported or unsupported fashion and then return to using Windows 10.
The test drive can be performed by making free or pay backup images.
The software so frequently used in our forums is Macrium.
The software is on sale tomorrow, black friday:
Black Friday
How to Create and Restore a System Image Backup with Macrium Reflect
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So you can make one or more backup images and save to another disk drive or to the cloud.
Then when you have completed the test drive an image can be restored.
If you use the Windows upgrade agent it will scan for unsupported parameters.
Files and or the registry can be modified so that the Windows upgrade agent does not detect unsupported parameters.
Then you can test drive for the default 10 days or modify the period to go back to windows 10.
This can be modified to a maximum of 60 days.
And during the 60 day period it can be modified again.
This tutorial will show you how to see and set the number of days after an upgrade you are still able to go back to a previous version of Windows in Windows 11. Windows 11 gives you the ability to uninstall and go back (roll back) to a previous version of Windows. When you upgrade to Windows...
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Sometimes tools can fail so the backup images add additional layers of protection to return to Windows 10.
If you clean install then Windows 11 can be installed on computers that had unsupported or supported findings.
And again the image can be restored when you've completed the test drive.
One more step that at times can be handy is to backup and restore drivers:
How to Backup and Restore Device Drivers in Windows 10
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