I have the same practice. I use Private tabs for mobile browsing and leave those tabs open as reminders for my interests. Whether this new behavior in 127.0 for iOS is a bug or intentional, I'm advocating for returning to the previous and expected be...
Indeed there is another post from 6-13 reporting the same behavior.Here: https://connect.mozilla.org/t5/discussions/private-tabs-ios-no-longer-automatically-stay-open-since-new/m-p/59620/highlight/true#M20963
I did Kudo this. I think the lack of remembering Private tabs needs more exposure. I rely on Private tabs for all of my mobile browsing. I had 90+ tabs that I needed to review, most of which I could do without but similar to the OP I was surprised to...