Here's an article about his passing:
https://variety.com/2024/music/news/phil-lesh-dies-grateful-dead-1236191200/
I probably saw him play live 25 to 30 times over the years. Recently Phil and Friends had periodic runs at the Capitol Theatre in Port Chester, New York. Right after one of those shows, I had a life changing health incident. After another, I learned that my mom had passed. Odd sad coincidences, but the good memories outweigh the bad.