I'm far more involved with my dds' exam periods than my parents were - but at their request and not, imho, to a ridiculous degree. I'm all about helping them to run their own lives but both are WAY clingier to me than I ever was, I cut a lot of slack due to their dad being an abusive twat so they've both been extremely clingy/close to me to compensate for all the trauma I suspect. I genuinely hope both will gradually strike out more on their own, dd1 is just starting to and she's almost 22.
Dd2 sometimes asks me to test her (mid A levels atm). I never have a clue what I'm reading, it's more being a sounding board for her to talk at and test herself! She taught the dog a load of sociology last week, dog was way more patient than me and gazed lovingly at dd2 for the entirety!
I helped her make a revision timetable a few months ago when she had a meltdown. She didn't really stick to it! I know when exams are as she tells me, and she messages me the minute they've finished (her choice), usually to announce that she's definitely failed, no, she really means it this time.
Dd1 read out tons of her essays to me over the phone during uni (I was entirely unable to help other than "that's a really long sentence love, maybe a full stop somewhere?!" but it seemed to help her. She will definitely want to talk through the decision making process when deciding on placement for next academic year but I'm always trying to encourage independence.
Tbh I actually worry how reliant my dds are on me because I fucked off at 18 without a backward glance, but I keep telling myself they'll get there when they're ready1