For platelets I believe blood type is not so important. I had a platelet transfusion of another blood type because of cancer treatment. I have A-, but cannot give transfusion because of cancer and other things.
But of course the platelets have to be very clean so it has no red bloodcells mixed in. And also the plasma.
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwiwyfr4o4_8AhXng_0HHVi6A6UQFnoECC8QAw&url=https%3A%2F%2Fashpublications.org%2Fhematology%2Farticle%2F2020%2F1%2F512%2F474292%2FDoes-ABO-and-RhD-matching-matter-for-platelet&usg=AOvVaw2EejehR9zDFhfJ2uk-Sjmg