Strokes are truly a roll of the dice. Some people have them and recover fully, some mostly recover, some barely recover and some like Perry never make it.
It all depends on where the bleed happens, what gets damaged and how long before you get to the hospital. If you are by yourself and pass out, it’s probably all over.
I recall Johnny Olson had one (the game show announcer and at age 75). The account that I read was that people figured that he must have sensed some sort of problem when he was driving back to his place in Los Angeles from LAX (after some time off at his West Virginia home) and pulled over near a hospital. They found him unconscious at the wheel and never regained it before passing on two or three days later.