On Thu, 27 Aug 2020 12:11:21 -0700 (PDT), Tricky Dicky
wrote:

I think I would be more concerned with the plasterboard ceiling which can start to bow and even collapse if thoroughly wet. I would remove the insulation, if it is only a small area it may not be worth waiting for it to dry out so replacement is probably easiest.

Thankfully it's not plasterboard. It's lath and plaster. I have had
worse leaks over the years that have dried out.