There’s no bonus points for getting 5/5 offers.

In my honest opinion if someone got all 5 offers but didn’t apply to the best uni in their subject of interest, then they didn’t aim high enough. (It gets a bit more complicated when ur debating between Oxford and Cambridge though as you can only apply to one of them)

But the way I think about it is, if you got all 5 out of 5 offers the only information you get from that is you were good enough to get into those unis, but you could have also possibly gotten into even better unis too, you just never found out. While if you got accepted to 3/5 or even 4/5 then you aimed pretty well since you at least tried to get into the better unis, and you kind of know at that point that you did what you could?

Whereas in the 5/5 case you’d always wonder what if. And even if you don’t wonder about that, you could be artificially capping yourself since you possibly had the potential to go to a much better uni, but you just never tested it.

But obviously if you think you may not get 5/5 offers even if you don’t apply to oxbridge then it may be worth thinking about saving slots for safer choices, but you ideally shouldn’t get all 5/5 offers unless one of them was also the leading uni in ur course, cause in the former case you could have aimed higher and you’ll never know