Either my eyesight just changed, or the video quality in my Windows VMs got blurry. I am viewing them on a 5k display, with the client OS at 2560 x 1440, without full resolution. Acceleration makes no difference.
It seems that something is probably anti-aliasing or something like that, but given I used to like how sharp it was, something has changed. If anyone knows what that might be, I'd welcome getting the nice sharp display back. Thanks.