It's just a VM + an RDP connection in rootless mode. You can do it, but RDP is flaky in rootless mode.
I'm currently using a similar setup for Office. You lose drag and drop, and you will be restarting the RDP client over and over again.
It's a "solution" if you're willing to put up with jank.
Out of interest why do you need to?
I've always been fine with libre office/Google docs since moving to Linux, but I'm not a heavy office user.
Thanks, I see stuff like this and think, "well if it worked well everyone would use it all the time".
Affinity is something I use occasionally enough to be able to put up with a bit of jank.
Appreciate the response, good to know what I'm getting into before diving into something.