I found this list... though it's a year old, maybe it's close enough? I guess I don't think about Win 10 compatibility much. I'm typing this on a 2007 ThinkPad that shipped with Vista (my newer laptop failed!) and though it's missing a couple of esoteric drivers, it runs Win 10 22H2 just fine (for me anyway) despite no official support, with the drivers that come via Windows Update. Running Win 11 on unsupported hardware requires tweaking the registry and reinstalling from scratch every version upgrade, but Win 10 doesn't require any of that; it just seems to work. I realize you may not have my luck.
I'm not finding any info about which Dell systems are compatible with Win 10 22H2. Also, I'm no longer able to find the list of Dell systems that support earlier versions of Windows 10. What gives? Thanks. P.S. The Community Web site is most weird. In Brave, the sign-in doesn't work. In Firefox, a 'Windows 10' group is shown as a place to post, but not here on Chrome. But the CAPTCHA  verification fails in FireFox.
Systems compatible Windows 10 22H2