A Windows 11 bootable USB drive will work on hardware that is not "Windows 11 ready". I've done this before using "Rufus" freeware to burn a "Windows To Go" image that is automatically tweaked by Rufus to run on older hardware. Here's an example on how to do that:
https://www.intowindows.com/rufus-to-create-windows-to-go-usb-drive/
However this is just another variation on "dual boot" which IMHO is needlessly clunky...
I suggest that you instead install free "Oracle VirtualBox" software and create a Windows 11 virtual machine. This is basically just an app running in your current Windows 10 operating system, but the virtual machine perfectly emulates a Windows 11 PC. You can even grant the VM access to the physical hard drives on your PC.
I've done this for years with a Windows 10 VM. The VM resides on a physical data partition on my PC. It contains all of my financial apps (like TurboTax, WillMaker, etc.), but the data files themselves (*.tax, etc.) also reside on the physical data drive. That way I can access the data files directly from my PC, or from within the emulated environment in the VM...
So whenever Micro$oft truly forces me to upgrade my physical PC to a new OS, I can completely wipe the system drive containing Windows and install a fresh OS using Microsoft's own Setup DVD images (not a vendor's "Recovery CD" with all its bloatware). Or better yet, finally migrate to Linux and be done with being led by the nose by software vendors (you can also create a Linux virtual machine to test drive that environment). All of my important data (like the financial VM and data files) reside on a different partition that is not disturbed during the OS install.
Anyway, VirtualBox is great for testing out new OSes and concepts. You don't need to get that deep into the weeds with it, but it should be a great tool to meet Intuit's misguided requirements for "Windows 11" without actually polluting your real PC with that bloatware.
