It’s probably not possible. It’s easy to enable BC but probably not possible. What else could be a problem? For instance, current games are for PC too so it could be much easier but old deals could be more restrictive.
If you really want to play it go get a used 360. That’s it. Your only option now.

If you really want to play it go get a used 360. That’s it. Your only option now.
True depending on how long they will be around for I guess as well but hopefully we will see more of something in the future
There will be no more 360 games added to BC according to this: E3 2019: What’s Next for Xbox Backward Compatibility - Xbox Wire. Getting a 360 would be your ONLY option to play the older games now.
I’ve been playing Forza 1 on 360 through VGA on a PC crt lately and its great. It will be awhile, but once the original xbox and 360 emulators on PC are good to go, that will be the best way to play them. The 360 one is making great progress (Xenia), and original xbox is slow but good. However, you will need a decent PC, nothing too crazy.
Here is an example of the original xbox emulator.
Here is Xenia, running Forza 2 on PC