I mean use the browser to cause the problem. It's been directly cause and effect for me. I don't know if there is another cause but it seems like it happens right after using the browser, and less often if I don't use it.
Thanks for the tip. In my case, I did not even have the chance to use the browser since it happened right after I installed the 2019.24.4, the usual reboots and offing the car completely (which I always do right after an install). Only then I saw all screen fonts garbled up. It took multiple reboots and leaving the car unused for several hours till all cleared up during the next startup. I recall the gibberish fonts issue had happened once before about six months ago but wasn't after a SW update and fresh recycling of the car.