I battled PF for ages, tried literally everything, and when nothing worked, my feet were in pain I decided to do the dumbest thing in the world and try to only thing I was told I shouldn’t do - run. I picked a day when my plantar fascia was not too painful and did the first training from c25k plan (roughly 8 minutes of jogging if I remember correctly). It actually helped me. Don’t try it at home, I think I got lucky…
Went from pain after more than 2km total per day to walking a half marathon just over three hours. And then my knees decided they didn’t like that at all and have not yet forgiven me.