From his website stallman.org:
Richard Stallman has cancer. Fortunately it is slow-growing and manageable follicular lymphona, so he will probably live many more years nonetheless. But he now has to be even more careful not to catch Covid-19.
Recent video of him speaking at GNU 40 Hacker Meeting. Screenshots of video stream.
http://xahlee.info/emacs/misc/rms_speech_requirement.html
It seems reasonable to wonder if he’ll allow an MRI image of his cancer if that image isn’t saved in a Free format. I don’t know where he draws the line, but his requirements seem to go quite a bit beyond what he owns or interacts with.