I had a best friend till 5th standard. Now she is no more. I don't know how to process

We haven't talked much in the last decade. But she was my first best friend. She was the one I met on the first day of KG. She used to make videos and reels but she didn't upload anything in last month. I stalked her profiles to see if everything is okay, but I found comments saying Om Shanti, Life is unpredictable, we will miss you etc. and some comments from her extended family too. I wanted to appreciate her content but never did. It should not affect me much because we haven't talked much in the last decade. But the reality is it's affecting me. I'm not able to process. I knew her since kindergarten. I wanted to ask about her from some common friends but they are also not reachable for now. Her parents are the real gem, very loving people. I feel bad for them. We just used to reply on each other's status or wish bday sometimes in the last decade. I don't know if I'm overreacting but it's affecting me.