I don't know if my answer will be helpful to you or not, Rainbow.

I am currently seeing the first t we ever saw (from over 30 years ago). She she was instrumental in getting us out our abusive home and into foster care as a minor. Recently something at work dredged up a whole lot of really old stuff and I needed to talk with someone openly and urgently. When looking thru the list of possible Ts her name came up and it felt right, so I arranged for it to happen.
Seeing her has served its current purpose (because parts of me have already established trust with her we can talk openly and urgently about the current situation without having to explain the history of trauma) and I can sense it brings a closure for her as well. She tells me she feels so 'privileged' to see us again.

We are also going to have an online session soon with ex long term t that we haven't seen for many years. We contacted her again recently after being out of email contact for about 4 years. We have spurts of back and forth communicaton every few years, but this will be the first (and likely only) session we have online with her.

But I don't know if my experiences with ex ts are typical or not. I suspect they are not. But I think if you had a decent relationship with a T in the past, they would be happy to hear an update.