You should be able just to do a clean install using the Win 10 MS Media Creation Tool. But you'll likely have to buy a license upgrade from Microsoft to go from 11 Home to 10 Pro.  To be safe, image the boot drive first and store the image on a USB HDD. That way you can quickly revert if something goes wrong with the clean install or if you decide you want Win 11 back. Macrium Reflect (free) is a good imaging tool for this...
I'm a power USER but not an IT expert. Received new XPS 8950 several days ago. It has OEM Windows 11 Home and I don't like it. I'm used to Windows 10 Pro. I've seen a number of apps and registry tweaks to, for instance, get back a usable Taskbar, etc. My preference would be to install Windows 10 Pro and move to a more mature Windows 11 when forced to.There are lots of "guides" out there about how to reverse an upgrade from Windows 10 to Windows 11, or from a Home to a Pro version, but little clarity about OEM installs. Any advice on how to proceed from my particular situation of Dell OEM Windows 11 Home?
XPS 8950, changing OS from 11 to 10