When I started teaching in secondary in the '80s, we did have a winding down at the end of term with trips and so on.
Nowadays, we still have the trips and sports days with the concomitant planning and risk assessments, but we also have the change of timetable implemented before the summer holidays. (I'm not making this into a competition with primary: I'm aware that my primary colleagues have their own challenges.) The LAs seem to have a bee in their bonnet about "wasted time", with HTs being praised for changing the timetable as soon as possible. In my LA, I think they all moved in May this year.
The result is that we have a full S2-S6 timetable with the S1 gaps being taken up by primary/S1 transition plus cover for trips and sometimes sports day.
As is the case with our primary colleagues, we also find ourselves being expected to organise open days, concerts, etc.
So far as reports are concerned, we're normally required to have two sets of reports per year group (for parents) on top of tracking, but earlier in the year in order to inform course choices.
I recall nearly being in tears one time when I was a young PT. I'd been on minimum timetable nearly all year with none of the management time that I was supposed to have, because of longterm staff absence.
We finally reached change of timetable and - on paper - I had some of my time back. Then we got the sports day timetable. My non-contacts had been taken away from me, so that I could cover the lessons of a young maths teacher who was going to be umpiring some of the games at sports day. (No, maths wasn't my subject.)
I think it's the only time a member of the SLT heard me swearing... (Yes, exceptionally non-professional of me. I was lucky that he was understanding.) I believe I asked whether they wanted me to stick a broom up my fundament and do the jannie's job as well...
In my last permanent school, we did also have what started out as a "Rewards Day" but finished up being some kind of treats day for all...because we can't discriminate against kids for being badly behaved... We were asked to volunteer to supervise various activities in our non-contacts.
When I failed to volunteer - by then I was a PTC and organising and teaching cover lessons for more than one department (staff absences) in the faculty with the largest number of classes as well as getting my paperwork in order for possible appeals (lest I be struck down by lightning during the holidays) - a Guidance teacher appeared in my classroom to remonstrate with me because it was "unfair" that I hadn't volunteered. To my shame, I acquiesced.
I've been retired from that post for 6 years now. The last I heard, I've had 6 replacements.
I don't think I'd have the patience to deal with the challenges in modern-day primary. I've cleaned up vomit and dealt with injuries in my time, but at least I've never had to deal with children starting school who haven't been toilet trained and I'm aware that primary forward planning has become particularly onerous.
I know that primaries had to defend their 5-14 figures to their Education Officers years back; I think it's the same for CfE levels now? I recall an EO lecturing a hall full of primary and secondary teachers for being too strict in their 5-14 grading! We still get the powers that be trying to "persuade" us to be generous with CfE, but the emphasis is very much on exam results.
One of the reasons that all secondary teachers now spend so much time now on preparing their exam related paperwork at the end of term is that - once the results are in - we're forced to defend our results and to compare them with other departments in our school, other schools in our LA and against the results of imaginary "comparator schools" across Scotland.
One year, I taught the same pupils in two different (but related) subjects. I found myself in the bizarre position of being in a meeting with an EO who queried why my results for one subject were slightly lower than the results for my other subject. I imagine that primary colleagues may have to endure some similar nonsense.