Fools, and I, rush in...
I installed v2004 on my main PC yesterday. Breaking a lifetime habit - wait for other people to encounter the bugs, David, no sense rushing in, you won't gain anything...
Well, so far, not too bad. Most things still work.
On the downside, see my rant elsewhere on this page about the *&^@! Web Search feature, which just won't take a hint and die already.
Oh, and I had the Winaero "Windows 7 Games for Windows 10" pack installed, in order to get my Freecell fix. Well, Microsoft silently uninstalled that (presumably, in order to protect me?) without so much as a notification, which was so very nice of them. I was able to reinstall it and it works just fine, so I can only assume that what they were protecting me from was card games that don't have adverts in them. At least they didn't try to reset my default browser choice for once.